Not to restart the debate (has been discussed before) but why would anyone want to watch a movie while driving. I guess one could argue it is for the front passenger. I don't know for sure, but I would guess driving and watching tv is illegal so more than your warranty could be voided if an accident occurs.

By the way, watching a DVD while in park is possible in '09s too. I think it started when ever they switched from the CD changer to the DVD changer.