I think I caught a glimpse of a 5d MKII on a bumper mount facing the cab of a pickup on the Duggar's show. Link here. (http://tlc.discovery.com/videos/18-kids-and-counting-duggars-on-ice.html) Skip to 19:00.

It sure looks like a 5D, and what other camera can produce that high of quality picture in HD?

Has this camera been spotted in use on any other network TV shows yet?