fixes #709 - Add option to show all languages in image interface

MediaBrowser.Controller/LiveTv/LiveTvProgram.cs

@@ -190,6 +190,8 @@ namespace MediaBrowser.Controller.LiveTv
 
         public override Task UpdateToRepository(ItemUpdateType updateReason, CancellationToken cancellationToken)
         {
+            DateLastSaved = DateTime.UtcNow;
+            
             // Avoid library manager and keep out of in-memory cache
             // Not great that this class has to know about that, but we'll improve that later.
             return ItemRepository.SaveItem(this, cancellationToken);