I don't know if I'm in the correct forum to ask this, but here goes:
I'm not in the market for a new TV just yet; I only buy one when the old one craps out. In fact, I bought my current 27" Samsung Tantus CRT TV several years ago after my American made RCA started giving trouble.
When I went TV shopping back then the new big screen units were being pushed but I was years away from digital cable and still am. I didn't need anything over 32" and my biggest priority was Picture-in-Picture because I'd seen it on my friend's Sony. I watch a lot of sports (not the stick-and-ball kind) and like switching between F1 races on Speed and TSN. Well, it turned out that PiP was no longer a common feature back then and only available on some really high end TVs. The salesmen told me it's not popular anymore and something about it not working with cable TV boxes anyway. I finally did find the Samsung above that had it and was still within my price range ($800).
Looking around now on-line I find that I can get PiP in LCD TVs for $1000 and up and Plasma TVs only over $3000. Not a chance of finding a TV with PiP at Walmart.
Why is this? I've searched the forums here and see some references to PiP not working with HDTV, but no clear explanation. Do people not ask for it anymore because manufacturers don't want to offer it, or is it the other way around? I'm afraid that by the time I need a new TV it won't be available at all, or at least not in TVs that sell for less than a good used car.