I initially had an RVU connection on a Samsung JS8500, which resulted in repeated audio stuttering. To mitigate this issue, a DirecTV tech inserted a client between the HR 54 and TV. That measure eliminated the stuttering – in marked contrast to experiences others have mentioned in this thread – but precipitated a dramatically more-irksome concern: on many occasions when I employ trick plays while viewing downloaded programs the screen goes black for several minutes of recording time. To date, DirecTV has been unable to rectify this matter, despite the fact it has resided with Engineering for more than six weeks (I am operating on the happy assumption it still is being addressed). Consequently, I now am compelled to watch almost-all shows directly from the HR 54, only using the client to access 4k programs.