Use Array.Empty

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -613,7 +613,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 if (!IsFileProtocol)
                 {
-                    return new string[] { };
+                    return Array.Empty<string>();
                 }
 
                 return new[] { Path };

MediaBrowser.Controller/Entities/Movies/BoxSet.cs

@@ -198,7 +198,7 @@ namespace MediaBrowser.Controller.Entities.Movies
 
         public Guid[] GetLibraryFolderIds()
         {
-            var expandedFolders = new List<Guid>() { };
+            var expandedFolders = new List<Guid>();
 
             return FlattenItems(this, expandedFolders)
                 .SelectMany(i => LibraryManager.GetCollectionFolders(i))

MediaBrowser.Controller/Library/TVUtils.cs

@@ -38,7 +38,7 @@ namespace MediaBrowser.Controller.Library
                     };
                 }
 
-                return new DayOfWeek[] { };
+                return Array.Empty<DayOfWeek>();
             }
 
             return null;