Recently, certain channels have a broken signal or give me a searching for signal error. SyFi is one of the channels and a number of the Show-time channels.. (532,538,539,544 and 545)' This may not be the only channels but it is the ones I have noticed... This all started around the time the show-time channels were enabled on my R-15 500. It was a Thank You from DTV. Anyone have an idea as to what is happening????