update channel db

MediaBrowser.Controller/Channels/ChannelVideoItem.cs

@@ -8,24 +8,17 @@ using MediaBrowser.Model.Users;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using System.Runtime.Serialization;
 using System.Threading;
 
 namespace MediaBrowser.Controller.Channels
 {
     public class ChannelVideoItem : Video, IChannelMediaItem, IHasLookupInfo<ChannelItemLookupInfo>
     {
-        public string ExternalId { get; set; }
-
-        public string DataVersion { get; set; }
-
         public ChannelItemType ChannelItemType { get; set; }
 
-        public bool IsInfiniteStream { get; set; }
-
         public ChannelMediaContentType ContentType { get; set; }
 
-        public string OriginalImageUrl { get; set; }
-
         public List<ChannelMediaInfo> ChannelMediaSources { get; set; }
 
         protected override string CreateUserDataKey()
@@ -56,6 +49,7 @@ namespace MediaBrowser.Controller.Channels
             return config.BlockUnratedItems.Contains(UnratedItem.ChannelContent);
         }
 
+        [IgnoreDataMember]
         public override bool SupportsLocalMetadata
         {
             get
@@ -74,6 +68,7 @@ namespace MediaBrowser.Controller.Channels
             ChannelMediaSources = new List<ChannelMediaInfo>();
         }
 
+        [IgnoreDataMember]
         public override LocationType LocationType
         {
             get