After battling with the tuner #2/110 sat issue, I was sitting here watching a bit of TV. Suddenly an idea occurred to me. On the coax line from both Tuner 1 & 2 is supposedly 18vdc (I think). What if the power supply specs are just a tad wimpy for running the receiver, LNBs and BBCs? Then add in a little slop in building and you've got a potential for something like switching not occurring properly. With my HR20, I can force the kill of 110 on #2 by taking the signal strength page and going to 103(c) and then back to 110. If I had a signal on #2 on 110 before, I won't have it then. That is switching. And I've seen it that when I went back to 110 on 2 that the signal would jump up and then drop to 'not acquired' in just a couple of seconds. Kind of like a switch making and then not holding. Have I stumbled on something here or is it just wishfull thinking on my part?