An issue has just started with my HR20-100 that I could not find searching the forums. I have noticed this only on Sunday football as it is the only time I have this specific situation. I am recording a football game, and watching the recording. When I catch up to the buffer and am watching it live, and then hit pause, the screen goes blank. I loose all access to HD channels. I can change to a SD channel and see it fine on both tuners, but neither tuner will tune any HD channel, locals included. This does not happen every time I hit pause, but it will happen at some point when I hit pause. The only solution at this point is to reboot the receiver. This has happened the last three Sundays. It happens on the 700 channels and the local networks. I am not sure if this happens with other programming, but imagine it does. Just about everything I watch except football is recorded in the past, it is very rare for me to watch live TV. This has never happened before the last three Sundays. I have a HR21 connected to the same dish (SL3 with 4 cable run, no SWM, etc). It does not have this problem after testing it extensively last Sunday. The HR20 is about 3 years old with a 750 gig replacement drive. I have bought a 2tb drive to try replacing, but I have a feeling this is not a hard drive issue. Anyone else seeing this? Any suggestions? I really want to try everything I can before I call Directv. I plan to re-download the firmware (just something to try) and install the new drive soon.