don't check the physical ID when comparing streams, this way the

stream position can be reused across channel switches

xbmc/xbmc_stream_utils.hpp

@@ -49,13 +49,14 @@ namespace ADDON
     }
 
     /**
-     * Compares this stream based on another stream
+     * Compares this stream based on another stream. It is considered 
+     * equal as long as the codec matches.
      * @param other
      * @return
      */
     inline bool operator==(const XbmcPvrStream &other) const
     {
-      return iPhysicalId == other.iPhysicalId && iCodecId == other.iCodecId;
+      return iCodecId == other.iCodecId;
     }
 
     /**