I am having the exact same problem. Earlier today I was watching channel 25 and it was getting snowier and snowier. Finally the signal gave out. I started flipping channels and I could not get anything under channel 48. Also, I intermittently could not get channel 98 & 99. I tried do a channel scan over and over again. I switch to air, I switched to cable. I unplug the TV for a couple hours. I changed the cables. No change. But my other 2 tvs and my VCR on this tv all receive all channels. I can't even watch my vcr on channel 3 of the TV (although I can watch it through the A/V connection).
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