I periodically lose many of my HD channels (H20 receiver, Slimline 5LNB dish). In checking my signal strengths in Antenna Setup, I notice that when this loss happens, I have 0 signal strength on sat 119, transponders 22,24,26,28,30, & 32. The others have OK levels, except for transponder 29, which is in the 50's. (Transp. 29 is always low like this). When all my HD channels are OK, none of the active transponders (22 through 32) on sat 119, is 0. This seems to happen most often at night, when the temperatures are colder, and it was not happening until the cold weather began a few weeks ago. I can understand the signals getting lower because of some temperature effect to the LNB, but I don't understand ZERO strength. I am tempted to call DTV to ask if they have other reports of similar nature, but I'm trying this forum first. Any insight into this would be appreciated.