I imagine that it's "local station screwing up", but I keep getting this problem when recording network HDTV on the DirecTiVo. It'll be an HD signal, but it'll recompress in both axes it so that it's letterboxed all the way around. Most of the time when it happens it'll either be that way for the entire show or just during one between-commercial segment, but I just watched one that switched during a segment, and I noticed that it changed audio formats, too, from Dolby Digital 3/0 when correct to DD 2/1 when super-letterboxed (if that's not a standard nomenclature, that's 3 front channels versus 2 fronts and one surround).

Anyone else seen this?