All of a sudden, I started to notice that the Daily Show was coming in pixielated (horrors!). Checking the signal strength, I found it to be only around 40. When I went to the satellite test screen and went through the transponders, I found that I was getting good signals on all the even numbered transponders (75-99) and poor signals on all the odd numbered transponders (none above 55). This was happening on both my DTivos. I checked the connections to the Tivo and I checked the connections to the multiswitch. I replaced one of the connectors to the switch because it might have been a little loose. This improved things slightly -- from the 30's and 40's, odd signals seemed to boost to the 40's and 50's. Of course, that could just be my imagination. Could I have a bad multiswitch? I don't think there's an issue with the antenna. I'm in L.A. and it hasn't rained for months and the weather has been remarkably calm, so I don't see the cables on the roof suddenly working loose after 5 years. I'd appreciate any wisdom the group might have. Thanks.