Our Hopper system with two Joeys had been freezing (in live mode and repeated in recorded mode) both audio and video for one to three seconds, buffering the lost signal so it later plays in "catch up" mode. Both the hopper and LNB have been replaced. The trees nearby have been trimmed using the Signal Finder app to visualize that the line-of -sight is clear. Any ideas, Dish coming back Saturday to investigate again?