Patrick, I'd be willing to bet that the quality control is either non-existent, or those doing it don't have the technical knowledge some HTF members possess.
Gary, I'm not seeing the combing on my gear. I'm using a Pioneer DV-563A player in progressive mode (verified it during playback) and displaying on a Toshiba 57H83 16:9 set. I saw your screen caps before viewing, so I was staying particularly aware, and never saw this issue. I'm not...