Originally Posted by D.Adams

Are you using 4k HDMI cables and feeding audio from the tv back to the AV Receiver via Toslink?

I try to stay away from the Roku as much as possible haven't had good luck with them lasting long. When I do an install and the customer wants 4K streaming I supply a 4K BluRey player. Streaming through the Tv will decrease the Tv's life dramatically.

For those that use Apple Tv's they will be releasing a new model here in a month or so that will support ful 4k.