diff --git a/.eslintrc.yml b/.eslintrc.yml
index 1055e084c9..f5ce779d44 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -3,6 +3,52 @@ env:
   browser: true
   amd: true
 
+globals:
+  # New browser globals
+  DataView: readonly
+  MediaMetadata: readonly
+  Promise: readonly
+  # Deprecated browser globals
+  DocumentTouch: readonly
+  # Tizen globals
+  tizen: readonly
+  webapis: readonly
+  # WebOS globals
+  webOS: readonly
+  # Dependency globals
+  $: readonly
+  jQuery: readonly
+  queryString: readonly
+  requirejs: readonly
+  # Jellyfin globals
+  ApiClient: writable
+  AppInfo: writable
+  chrome: writable
+  ConnectionManager: writable
+  DlnaProfilePage: writable
+  Dashboard: writable
+  DashboardPage: writable
+  Emby: readonly
+  Events: writable
+  getParameterByName: writable
+  getWindowLocationSearch: writable
+  Globalize: writable
+  Hls: writable
+  humaneDate: writable
+  humaneElapsed: writable
+  LibraryMenu: writable
+  LinkParser: writable
+  LiveTvHelpers: writable
+  MetadataEditor: writable
+  pageClassOn: writable
+  pageIdOn: writable
+  PlaylistViewer: writable
+  UserParentalControlPage: writable
+  Windows: readonly
+
+extends:
+  - eslint:recommended
+
 rules:
   block-spacing: ["error"]
   brace-style: ["error"]
@@ -11,17 +57,15 @@ rules:
   eol-last: ["error"]
   indent: ["error", 4, { "SwitchCase": 1 }]
   keyword-spacing: ["error"]
-  line-comment-position: ["off"]
   max-statements-per-line: ["error"]
-  no-empty: ["error"]
-  no-extra-semi: ["error"]
   no-floating-decimal: ["error"]
   no-multi-spaces: ["error"]
   no-multiple-empty-lines: ["error", { "max": 1 }]
   no-trailing-spaces: ["error"]
-  no-void: ["off"]
   one-var: ["error", "never"]
-  padding-line-between-statements: ["off"]
-  semi: ["off"]
+  semi: ["warn"]
   space-before-blocks: ["error"]
-  yoda: ["off"]
+  # TODO: Fix warnings and remove these rules
+  no-redeclare: ["warn"]
+  no-unused-vars: ["warn"]
+  no-useless-escape: ["warn"]
diff --git a/src/components/alphanumericshortcuts/alphanumericshortcuts.js b/src/components/alphanumericshortcuts/alphanumericshortcuts.js
index 0c62add1e1..2bcf3712bb 100644
--- a/src/components/alphanumericshortcuts/alphanumericshortcuts.js
+++ b/src/components/alphanumericshortcuts/alphanumericshortcuts.js
@@ -10,7 +10,7 @@ define(['dom', 'focusManager'], function (dom, focusManager) {
         if (e.ctrlKey) {
             return;
         }
-        if (!!e.shiftKey) {
+        if (e.shiftKey) {
             return;
         }
         if (e.altKey) {
diff --git a/src/components/apphost.js b/src/components/apphost.js
index 79866dd7af..f3e89ed29e 100644
--- a/src/components/apphost.js
+++ b/src/components/apphost.js
@@ -324,7 +324,7 @@ define(["appSettings", "browser", "events", "htmlMediaHelper"], function (appSet
       * Ask user for exit
       */
     function askForExit() {
-        if (!!exitPromise) {
+        if (exitPromise) {
             return;
         }
 
diff --git a/src/components/cardbuilder/cardBuilder.js b/src/components/cardbuilder/cardBuilder.js
index edefd37db9..bec641f407 100644
--- a/src/components/cardbuilder/cardBuilder.js
+++ b/src/components/cardbuilder/cardBuilder.js
@@ -140,7 +140,6 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
                         }
                         return 100 / 72;
                     }
-                    break;
                 case 'overflowPortrait':
 
                     if (layoutManager.tv) {
@@ -166,7 +165,6 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
                         }
                         return 100 / 42;
                     }
-                    break;
                 case 'overflowSquare':
                     if (layoutManager.tv) {
                         return 100 / 15.5;
@@ -191,7 +189,6 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
                         }
                         return 100 / 42;
                     }
-                    break;
                 case 'overflowBackdrop':
                     if (layoutManager.tv) {
                         return 100 / 23.3;
@@ -216,7 +213,6 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
                         }
                         return 100 / 72;
                     }
-                    break;
                 default:
                     return 4;
             }
@@ -870,9 +866,10 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
 
                     if (item.PremiereDate) {
                         try {
-
-                            lines.push(getPremiereDateText(item));
-
+                            lines.push(datetime.toLocaleDateString(
+                                datetime.parseISO8601Date(item.PremiereDate),
+                                { weekday: 'long', month: 'long', day: 'numeric' }
+                            ));
                         } catch (err) {
                             lines.push('');
 
@@ -1383,7 +1380,7 @@ define(['datetime', 'imageLoader', 'connectionManager', 'itemHelper', 'focusMana
             }
 
             if (item.Type === 'CollectionFolder' || item.CollectionType) {
-                var refreshClass = item.RefreshProgress || (item.RefreshStatus && virtualFolder.item !== 'Idle') ? '' : ' class="hide"';
+                var refreshClass = item.RefreshProgress ? '' : ' class="hide"';
                 indicatorsHtml += '<div is="emby-itemrefreshindicator"' + refreshClass + ' data-progress="' + (item.RefreshProgress || 0) + '" data-status="' + item.RefreshStatus + '"></div>';
                 requireRefreshIndicator();
             }
diff --git a/src/components/chromecast/chromecasthelpers.js b/src/components/chromecast/chromecasthelpers.js
index d8bb29252d..2fef0c68b3 100644
--- a/src/components/chromecast/chromecasthelpers.js
+++ b/src/components/chromecast/chromecasthelpers.js
@@ -131,8 +131,9 @@ define(['events'], function (events) {
                 var links = [];
                 var match;
 
+                // eslint-disable-next-line no-cond-assign
                 while (match = linkRegExp.exec(text)) {
-                    console.debug(matches);
+                    console.debug(match);
                     var txt = match[0];
                     var pos = match.index;
                     var len = txt.length;
diff --git a/src/components/dom.js b/src/components/dom.js
index 5c96965d15..072ff5c77c 100644
--- a/src/components/dom.js
+++ b/src/components/dom.js
@@ -63,6 +63,7 @@ define([], function () {
     var supportsCaptureOption = false;
     try {
         var opts = Object.defineProperty({}, 'capture', {
+            // eslint-disable-next-line getter-return
             get: function () {
                 supportsCaptureOption = true;
             }
diff --git a/src/components/guide/guide-settings.js b/src/components/guide/guide-settings.js
index b31a3d1086..7409a7e943 100644
--- a/src/components/guide/guide-settings.js
+++ b/src/components/guide/guide-settings.js
@@ -89,20 +89,6 @@ define(['dialogHelper', 'globalize', 'userSettings', 'layoutManager', 'connectio
         }
     }
 
-    function onSortByChange() {
-        var newValue = this.value;
-        if (this.checked) {
-            var changed = options.query.SortBy !== newValue;
-
-            options.query.SortBy = newValue.replace('_', ',');
-            options.query.StartIndex = 0;
-
-            if (options.callback && changed) {
-                options.callback();
-            }
-        }
-    }
-
     function showEditor(options) {
 
         return new Promise(function (resolve, reject) {
diff --git a/src/components/htmlvideoplayer/plugin.js b/src/components/htmlvideoplayer/plugin.js
index 6760e1dd99..3ac45aabb9 100644
--- a/src/components/htmlvideoplayer/plugin.js
+++ b/src/components/htmlvideoplayer/plugin.js
@@ -1,5 +1,6 @@
 define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackManager', 'appRouter', 'appSettings', 'connectionManager', 'htmlMediaHelper', 'itemHelper', 'fullscreenManager', 'globalize'], function (browser, require, events, appHost, loading, dom, playbackManager, appRouter, appSettings, connectionManager, htmlMediaHelper, itemHelper, fullscreenManager, globalize) {
     "use strict";
+    /* globals cast */
 
     var mediaManager;
 
@@ -357,6 +358,7 @@ define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackMa
             return new Promise(function (resolve, reject) {
 
                 require(['shaka'], function () {
+                    /* globals shaka */
 
                     var player = new shaka.Player(elem);
 
@@ -739,10 +741,6 @@ define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackMa
                     elemAudioTracks[i].enabled = false;
                 }
             }
-
-            setTimeout(function () {
-                elem.currentTime = elem.currentTime;
-            }, 100);
         };
 
         self.stop = function (destroyPlayer) {
@@ -1349,38 +1347,6 @@ define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackMa
             }
         }
 
-        function updateTextStreamUrls(startPositionTicks) {
-
-            if (!supportsTextTracks()) {
-                return;
-            }
-
-            var allTracks = self._mediaElement.textTracks; // get list of tracks
-            var i;
-            var track;
-
-            for (i = 0; i < allTracks.length; i++) {
-
-                track = allTracks[i];
-
-                // This throws an error in IE, but is fine in chrome
-                // In IE it's not necessary anyway because changing the src seems to be enough
-                try {
-                    while (track.cues.length) {
-                        track.removeCue(track.cues[0]);
-                    }
-                } catch (e) {
-                    console.error('error removing cue from textTrack');
-                }
-            }
-
-            var tracks = self._mediaElement.querySelectorAll('track');
-            for (i = 0; i < tracks.length; i++) {
-                track = tracks[i];
-                track.src = replaceQueryString(track.src, 'startPositionTicks', startPositionTicks);
-            }
-        }
-
         function createMediaElement(options) {
 
             if (browser.tv || browser.iOS || browser.mobile) {
@@ -1652,9 +1618,13 @@ define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackMa
         if (document.AirPlayEnabled) {
             if (video) {
                 if (isEnabled) {
-                    video.requestAirPlay().catch(onAirPlayError);
+                    video.requestAirPlay().catch(function(err) {
+                        console.error("Error requesting AirPlay", err)
+                    });
                 } else {
-                    document.exitAirPLay().catch(onAirPlayError);
+                    document.exitAirPLay().catch(function(err) {
+                        console.error("Error exiting AirPlay", err)
+                    });
                 }
             }
         } else {
diff --git a/src/components/humanedate.js b/src/components/humanedate.js
index 85d3a6d3bf..26ce26d942 100644
--- a/src/components/humanedate.js
+++ b/src/components/humanedate.js
@@ -25,6 +25,7 @@ define(["datetime"], function (datetime) {
         if (seconds < 0) {
             seconds = Math.abs(seconds);
         }
+        // eslint-disable-next-line no-cond-assign
         for (; format = time_formats[i++];) {
             if (seconds < format[0]) {
                 if (2 == format.length) {
diff --git a/src/components/libraryoptionseditor/libraryoptionseditor.js b/src/components/libraryoptionseditor/libraryoptionseditor.js
index 010af4a1df..193533bfc2 100644
--- a/src/components/libraryoptionseditor/libraryoptionseditor.js
+++ b/src/components/libraryoptionseditor/libraryoptionseditor.js
@@ -463,7 +463,7 @@ define(["globalize", "dom", "emby-checkbox", "emby-select", "emby-input"], funct
 
             if (!typeOptions) {
                 typeOptions = {
-                    Type: type
+                    Type: originalTypeOption.Type
                 };
                 options.TypeOptions.push(typeOptions);
             }
diff --git a/src/components/polyfills/focusPreventScroll.js b/src/components/polyfills/focusPreventScroll.js
index 8c8da94244..6df9e9928c 100644
--- a/src/components/polyfills/focusPreventScroll.js
+++ b/src/components/polyfills/focusPreventScroll.js
@@ -12,6 +12,7 @@ if (HTMLElement.prototype.nativeFocus === undefined) {
             }, true);
 
             var opts = Object.defineProperty({}, "preventScroll", {
+                // eslint-disable-next-line getter-return
                 get: function () {
                     supportsPreventScrollOption = true;
                 }
diff --git a/src/components/polyfills/objectassign.js b/src/components/polyfills/objectassign.js
index bf8d7118a5..85f55aa144 100644
--- a/src/components/polyfills/objectassign.js
+++ b/src/components/polyfills/objectassign.js
@@ -11,6 +11,7 @@ if (typeof Object.assign != 'function') {
                 var source = arguments[index];
                 if (source !== undefined && source !== null) {
                     for (var nextKey in source) {
+                        // eslint-disable-next-line no-prototype-builtins
                         if (source.hasOwnProperty(nextKey)) {
                             output[nextKey] = source[nextKey];
                         }
diff --git a/src/components/sanitizefilename.js b/src/components/sanitizefilename.js
index 9bcc99e3a1..f53ce613f6 100644
--- a/src/components/sanitizefilename.js
+++ b/src/components/sanitizefilename.js
@@ -4,6 +4,7 @@ define([], function () {
     'use strict';
 
     var illegalRe = /[\/\?<>\\:\*\|":]/g;
+    // eslint-disable-next-line no-control-regex
     var controlRe = /[\x00-\x1f\x80-\x9f]/g;
     var reservedRe = /^\.+$/;
     var windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
diff --git a/src/components/scrollManager.js b/src/components/scrollManager.js
index 21af83055f..5fc3729bac 100644
--- a/src/components/scrollManager.js
+++ b/src/components/scrollManager.js
@@ -33,6 +33,7 @@ define(["dom", "browser", "layoutManager"], function (dom, browser, layoutManage
         var elem = document.createElement("div");
 
         var opts = Object.defineProperty({}, "behavior", {
+            // eslint-disable-next-line getter-return
             get: function () {
                 supportsScrollToOptions = true;
             }
diff --git a/src/components/serviceworker/notifications.js b/src/components/serviceworker/notifications.js
index dbb0844045..33f54bb64d 100644
--- a/src/components/serviceworker/notifications.js
+++ b/src/components/serviceworker/notifications.js
@@ -1,3 +1,4 @@
+/* eslint-env serviceworker */
 (function () {
     'use strict';
 
diff --git a/src/components/skinManager.js b/src/components/skinManager.js
index b38ff25791..b81e7c3a40 100644
--- a/src/components/skinManager.js
+++ b/src/components/skinManager.js
@@ -162,6 +162,7 @@ define(['apphost', 'userSettings', 'browser', 'events', 'pluginManager', 'backdr
     function playSound(path, volume) {
         lastSound = new Date().getTime();
         require(['howler'], function (howler) {
+            /* globals Howl */
             try {
                 var sound = new Howl({
                     src: [path],
diff --git a/src/components/subtitlesync/subtitlesync.js b/src/components/subtitlesync/subtitlesync.js
index 904c612317..07ce2cb7ec 100644
--- a/src/components/subtitlesync/subtitlesync.js
+++ b/src/components/subtitlesync/subtitlesync.js
@@ -130,7 +130,7 @@ define(['playbackManager', 'text!./subtitlesync.template.html', 'css!./subtitles
     SubtitleSync.prototype.toggle = function(action) {
 
         if (player && playbackManager.supportSubtitleOffset(player)) {
-
+            /* eslint-disable no-fallthrough */
             switch (action) {
                 case undefined:
                     // if showing subtitle sync is enabled
@@ -157,7 +157,7 @@ define(['playbackManager', 'text!./subtitlesync.template.html', 'css!./subtitles
                     subtitleSyncContainer.classList.add("hide");
                     break;
             }
-
+            /* eslint-enable no-fallthrough */
         }
     }
 
diff --git a/src/components/tunerpicker.js b/src/components/tunerpicker.js
index ec6087b890..4dd5ecd3de 100644
--- a/src/components/tunerpicker.js
+++ b/src/components/tunerpicker.js
@@ -1,4 +1,4 @@
-define(["dialogHelper", "dom", "layoutManager", "connectionManager", "globalize", "loading", "browser", "material-icons", "formDialogStyle", "emby-button", "emby-itemscontainer", "cardStyle"], function (dialogHelper, dom, layoutManager, connectionManager, globalize, loading, browser) {
+define(["dialogHelper", "dom", "layoutManager", "connectionManager", "globalize", "loading", "browser", "focusManager", "scrollHelper", "material-icons", "formDialogStyle", "emby-button", "emby-itemscontainer", "cardStyle"], function (dialogHelper, dom, layoutManager, connectionManager, globalize, loading, browser, focusManager, scrollHelper) {
     "use strict";
 
     var enableFocusTransform = !browser.slow && !browser.edge;
@@ -152,14 +152,14 @@ define(["dialogHelper", "dom", "layoutManager", "connectionManager", "globalize"
             });
 
             if (layoutManager.tv) {
-                centerFocus(dlg.querySelector(".formDialogContent"), false, true);
+                scrollHelper.centerFocus.on(dlg.querySelector(".formDialogContent"), false);
             }
 
             var apiClient = connectionManager.getApiClient(options.serverId);
             discoverDevices(dlg, apiClient);
 
             if (layoutManager.tv) {
-                centerFocus(dlg.querySelector(".formDialogContent"), false, false);
+                scrollHelper.centerFocus.off(dlg.querySelector(".formDialogContent"), false);
             }
 
             return dialogHelper.open(dlg).then(function () {
diff --git a/src/components/youtubeplayer/plugin.js b/src/components/youtubeplayer/plugin.js
index df04fb850e..fd9c05292e 100644
--- a/src/components/youtubeplayer/plugin.js
+++ b/src/components/youtubeplayer/plugin.js
@@ -1,5 +1,6 @@
 define(['require', 'events', 'browser', 'appRouter', 'loading'], function (require, events, browser, appRouter, loading) {
     "use strict";
+    /* globals YT */
 
     function zoomIn(elem, iterations) {
         var keyframes = [
diff --git a/src/controllers/dashboard/dashboard.js b/src/controllers/dashboard/dashboard.js
index 1b7d123931..2530d7a9a1 100644
--- a/src/controllers/dashboard/dashboard.js
+++ b/src/controllers/dashboard/dashboard.js
@@ -741,21 +741,15 @@ define(["datetime", "events", "itemHelper", "serverNotifications", "dom", "globa
     };
     return function (view, params) {
         function onRestartRequired(evt, apiClient) {
-            if (apiClient.serverId() === serverId) {
-                renderHasPendingRestart(view, apiClient, true);
-            }
+            console.debug('onRestartRequired not implemented', evt, apiClient);
         }
 
         function onServerShuttingDown(evt, apiClient) {
-            if (apiClient.serverId() === serverId) {
-                renderHasPendingRestart(view, apiClient, true);
-            }
+            console.debug('onServerShuttingDown not implemented', evt, apiClient);
         }
 
         function onServerRestarting(evt, apiClient) {
-            if (apiClient.serverId() === serverId) {
-                renderHasPendingRestart(view, apiClient, true);
-            }
+            console.debug('onServerRestarting not implemented', evt, apiClient);
         }
 
         function onPackageInstalling(evt, apiClient) {
diff --git a/src/controllers/dashboard/general.js b/src/controllers/dashboard/general.js
index fe8661b578..a434e46241 100644
--- a/src/controllers/dashboard/general.js
+++ b/src/controllers/dashboard/general.js
@@ -58,7 +58,7 @@ define(["jQuery", "loading", "fnchecked", "emby-checkbox", "emby-textarea", "emb
                 });
             }, function () {
                 require(["alert"], function (alert) {
-                    alert(globalize.translate("DefaultErrorMessage"));
+                    alert(Globalize.translate("DefaultErrorMessage"));
                 });
 
                 Dashboard.processServerConfigurationUpdateResult();
diff --git a/src/controllers/itemdetailpage.js b/src/controllers/itemdetailpage.js
index 990de87b60..ad8c0286b0 100644
--- a/src/controllers/itemdetailpage.js
+++ b/src/controllers/itemdetailpage.js
@@ -647,7 +647,7 @@ define(["loading", "appRouter", "layoutManager", "connectionManager", "cardBuild
     function setTitle(item, apiClient) {
         var url = logoImageUrl(item, apiClient, {});
 
-        if (url = null) {
+        if (url != null) {
             var pageTitle = document.querySelector(".pageTitle");
             pageTitle.style.backgroundImage = "url('" + url + "')";
             pageTitle.classList.add("pageTitleWithLogo");
@@ -1661,7 +1661,7 @@ define(["loading", "appRouter", "layoutManager", "connectionManager", "cardBuild
     function canPlaySomeItemInCollection(items) {
         var i = 0;
 
-        for (length = items.length; i < length; i++) {
+        for (var length = items.length; i < length; i++) {
             if (playbackManager.canPlay(items[i])) {
                 return true;
             }
diff --git a/src/scripts/browserdeviceprofile.js b/src/scripts/browserdeviceprofile.js
index 7eb2c3caff..b45bdc59bf 100644
--- a/src/scripts/browserdeviceprofile.js
+++ b/src/scripts/browserdeviceprofile.js
@@ -92,7 +92,7 @@ define(['browser'], function (browser) {
             return true;
         }
 
-        if (!!videoTestElement.canPlayType) {
+        if (videoTestElement.canPlayType) {
             return videoTestElement.canPlayType('application/x-mpegurl; codecs="avc1.42E01E, ac-3"').replace(/no/, '') ||
                 videoTestElement.canPlayType('application/vnd.apple.mpegURL; codecs="avc1.42E01E, ac-3"').replace(/no/, '');
         }
diff --git a/src/scripts/userpassword.js b/src/scripts/userpassword.js
deleted file mode 100644
index 52e06e6cec..0000000000
--- a/src/scripts/userpassword.js
+++ /dev/null
@@ -1,30 +0,0 @@
-define(["jQuery", "loading", "libraryMenu"], function ($, loading, libraryMenu) {
-    "use strict";
-
-    function loadUser(page, user) {
-        libraryMenu.setTitle(user.Name);
-
-        if ("Guest" == user.ConnectLinkType) {
-            $(".connectMessage", page).show();
-        } else {
-            $(".connectMessage", page).hide();
-        }
-
-        loading.hide();
-    }
-
-    function loadData(page) {
-        loading.show();
-        var userId = getParameterByName("userId");
-        ApiClient.getUser(userId).then(function (user) {
-            loadUser(page, user);
-        });
-    }
-
-    $(document).on("pageinit", "#userPasswordPage", function () {
-        $(".adminUpdatePasswordForm").off("submit", UpdatePasswordPage.onSubmit).on("submit", UpdatePasswordPage.onSubmit);
-        $(".adminLocalAccessForm").off("submit", UpdatePasswordPage.onLocalAccessSubmit).on("submit", UpdatePasswordPage.onLocalAccessSubmit);
-    }).on("pagebeforeshow", "#userPasswordPage", function () {
-        loadData(this);
-    });
-});
diff --git a/src/serviceworker.js b/src/serviceworker.js
index 49c3767691..c43d1f4b4e 100644
--- a/src/serviceworker.js
+++ b/src/serviceworker.js
@@ -1 +1,2 @@
+/* eslint-env serviceworker */
 importScripts("components/serviceworker/notifications.js");