Just got my HR20-100s yesterday. Seems to be set up an operating normally so far. I have an OTA antenna hooked up as well. I did note one quirk trying to tune one of my local OTA affiliates (WXIA in Atlanta, NBC). WXIA broadcasts 11-1 as well as a full time weather channel 11-2. If I tune in to 11-1 (from another channel altogether) it comes in fine but the HR-20 is then not able to tune 11-2. Same thing in reverse, if first on 11-2, can't tune 11-1 unless I go to another station and then tune 11-1. In other words, it cannot go directly from 11-1 or 11-2 to the other subchannel without first going to another station. Has anyone else seen this type of behaviour on your locals?