Originally Posted by DrOct
I remember struggling with this a little. I don't quite recall what my solution was but I think I left the TV on "native" (or whatever it is) and just made sure all the boxes I had attached to my receiver knew what to do with non HD content. I'm lucky enough to be doing all OTA/Internet so I don't have to deal with a cable box that may or may not actually know quite what to do with such things.
Thanks for the reply, yeah, I found that Native setting and left it on that and it's still forcing 4:3 content with black bars instead of full. I don't remember changing anything on my cable box/receiver but at this point who know... The only option I have regarding picture on my cable box is to send out 1080i, so that's checked. As far as my receiver, I don't really remember changing anything but I might have, but to my knowledge, it's just sending the content straight through. Just to be sure, I've scrolled through all settings in real-time and it's making no change to the black bars (Full, wide, auto, etc). It does zoom and fill, but that's not really what I want.
I may either reset my TV, or plug my cable box straight into the TV to see if I can rule out the receiver.