My S3 has started getting the "this program was not recorded because the video signal was unavailable" error on certain shows. It has happened on the same show the last two weeks, while at the same time recording a show on the other tuner. Then I realized that it didn't record another show with the same error night before last. My signals are good on both tuners and I can't figure out why it's happening. I rebooted after the problem last Thursday and it did it again about 4 days later. It's quite infrequent but has never happened in the past. Anyone else run into this or have any suggestions or thoughts?