The NFL seems to judge which games are "HD worthy". If your watching a regional broadcast between two crummy teams, chances are it will be standard signal with the bars on the side since this signal isn't in a 16:9 format. You will also notice the quality is lacking. A couple weeks ago I was watching a HD game it was having some delay issues and the images had a "shutter" effect that bothered my wife. We tried the image broadcast on the normal nonHD channels to compare and it was almost unwatchable. Boy, am I spoiled.
