Yeah I had a PID issue with one of our local channels a few years back. One of the station engineers had their car into our shop for work and I cornered him and try to get the right PIDs. He's telling me I need to go to work for them cause I know more than a lot of the guys they pay to know. LOL. I didn't get the PIDs but I finally trial and error my way into it.I'd bet that's not an AirTV issue. Your local station probably doesn't have their aspect ratio set correctly. I have one of those left here. I contacted station engineers and had them fix some sub channels, but at one station (who must be incompetent) they couldn't fix it.