I'm in the same boat as you guys. This is my first HDTV.
white flickering line at the top of some/most Sd channels, and HD channels with SD content (local news on the local ABC HD channel for instance)
so here's my experience - I can choose to "fill" on my tv, or I can choose to stretch through my cox DVR HD reciever - however - My HD channels look better when not stretched or zoomed (except that 480 SD content, like local news) so If I stretch or zoom, or fill, or overscan, Im going to be switching back everytime I change to HD.
IS THIS REALLY HOW PEOPLE WATCH HD TELEVISIONS?!?!?!?