A long time ago it was the coolest thing to get a big-screen TV with PIP, but then after LCD TVs started becoming more popular, I didn't hear people mention it much. Anyway, when I bought my first big LCD TV (quite a few years ago), I was happy to see that it offered PIP (despite it not be advertised anywhere on the packaging) -- BUT it only worked for certain inputs (e.g. it isn't possible to display component and HDMI at the same time). I suspect that some of these limitations are due to problems with scaling digital content (and of course PIP over-the-air TV would require two tuners, etc.)
Okay, but I'm seeing all of these new "smart" TVs everywhere that have web apps and that sort of thing, but I never hear ANYONE mention PIP at all. So... is PIP still around? I know it probably sounds like a stupid question, but I have only recently begun looking for a new large screen TV and I never see PIP advertised as a feature, so I'm just wondering if it exists on modern TVs. Personally, I would rather be able to display two sources at the same time than have some kind of app that allows me to check Facebook on my plasma TV.
What I would love is a plasma display that would allow me to do PIP with HDMI (e.g. HDMI and TV/two HDMI sources, etc). I'm guessing that this doesn't exists, but I would happy to find that I am mistaken.