convert programs and channels to new providers

MediaBrowser.Providers/BaseXmlProvider.cs

@@ -1,6 +1,7 @@
 using MediaBrowser.Common.IO;
 using MediaBrowser.Controller.Providers;
 using System;
+using System.IO;
 using System.Threading;
 
 namespace MediaBrowser.Providers
@@ -24,5 +25,10 @@ namespace MediaBrowser.Providers
 
             return FileSystem.GetLastWriteTimeUtc(path) > date;
         }
+
+        public bool HasLocalMetadata(IHasMetadata item)
+        {
+            return File.Exists(GetXmlPath(item.Path));
+        }
     }
 }