resolve missing trailers

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -2084,7 +2084,7 @@ namespace MediaBrowser.Controller.Entities
         {
             get
             {
-                if (GetParent() is AggregateFolder || this is Channel || this is BasePluginFolder)
+                if (GetParent() is AggregateFolder || this is BasePluginFolder)
                 {
                     return true;
                 }
@@ -2094,6 +2094,10 @@ namespace MediaBrowser.Controller.Entities
                 {
                     return true;
                 }
+                if (view != null && string.Equals(view.ViewType, CollectionType.Channels, StringComparison.OrdinalIgnoreCase))
+                {
+                    return true;
+                }
 
                 return false;
             }

MediaBrowser.Server.Implementations/Persistence/SqliteItemRepository.cs

@@ -79,7 +79,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
 
         private IDbCommand _updateInheritedRatingCommand;
 
-        private const int LatestSchemaVersion = 53;
+        private const int LatestSchemaVersion = 55;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="SqliteItemRepository"/> class.