VIP722 OTA recording glitch

[Rolf Donahower]

Dish locals are SD only. I use an OTA antenna for local HD. Works great except one local (NBC Bend, OR) seems to corrupt their signal so it won’t record. Drops out, LOS, finally quits recording. Signal strength 85+, same as others which are OK. My old DTV HR20 had no problems recording this channel. Dish says the broadcast signal is probably corrupted! Any suggestions?