I've been working on my MythTV quite a bit lately. With the new baby, my hobbies have taken a turn towards things I can work on in short hour long chunks :).

I've been having this weird problem with changing channels. When the channel changes, the auto-detect feature for Progressive or Interlaced video would incorrectly choose Progressive. I am using the PVR-250 card. It has RCA, COAX, and S-Video inputs. For some dumb reason I was messing around with using the RCA input. It turns out that anytime the cable box menu would appear on screen during the channel change, that the auto-detect would detect progressive and not interlace. All I had to do was use the COAX connection and it stopped having that issue.