HD DVR playback issue

[eckman]

I have an HD DVR and starting recently during playback of hd recordings the picture freezes and skips making it pretty much unwatchable. I tried to record non-hd shows and there is no problem with the playback. I have reset the unit and unplugged the power and still have issues. Any one have any ideas?

 

[charper1]

What are your signal strengths?