update series recordings

MediaBrowser.Model/LiveTv/SeriesTimerInfoDto.cs

@@ -6,6 +6,9 @@ using System.Runtime.Serialization;
 
 namespace MediaBrowser.Model.LiveTv
 {
+    /// <summary>
+    /// Class SeriesTimerInfoDto.
+    /// </summary>
     [DebuggerDisplay("Name = {Name}")]
     public class SeriesTimerInfoDto : BaseTimerInfoDto
     {
@@ -45,6 +48,12 @@ namespace MediaBrowser.Model.LiveTv
         /// <value>The image tags.</value>
         public Dictionary<ImageType, string> ImageTags { get; set; }
 
+        /// <summary>
+        /// Gets or sets the external series identifier.
+        /// </summary>
+        /// <value>The external series identifier.</value>
+        public string ExternalSeriesId { get; set; }
+
         /// <summary>
         /// Gets a value indicating whether this instance has primary image.
         /// </summary>