This happened awhile ago and I forgot about it. But yesterday since the box, HwS, wouldn't let me do a timer for the local news after the SB, I sent a timer on the OTA channel. I went to watch it and it was all broken up with macro-blocking and the sound dropping. I checked the signal level, it showed 100% and the channel when viewed live was fine. Have I discovered a new "feature"? (snark)