I've had the same black screen tuning issues reported by others in the forum. My issues appear to be tuning adapter related with SDV channels failing regularly. I've seen "Channel Not Available", "Problem with the signal..", and just the black screen with DVR diagnostics having resolution status pending indefinitely. Tomorrow I have a truck roll to check signal strength. Unfortunately I've tried signal boosters, removing splitters, reducing tuner counts, swapping both cable cards and tuning adapters with no resolution. Hopefully the tech finds something, but I'm curious if anyone is having success or similar issues on Brighthouse CFL. I'd love to hear that someones having success in this area b/c at this point I'm at a loss.