Video Multiplexing on Large Screens?

videoPIP asks: "I recently finished putting together my home theater (including a projector). As I sit there and watch stuff on the big screen, I remember a time back in college where my housemates and I would have 2 or 3 TVs crammed into the entertainment center, one usually having a football game on and the other playing movies or for video games. This got me to thinking - I know that, for CCTV security systems, they have 4 screens visible at a time, but they are usually black and white (like at Best Buy). I've looked on Google for these, and there are all sorts of configurations (4/9/16 channels), (simplex/duplex,triplex). I was wondering if anyone has married one of these multiplexers with a projector, or even a very large TV to get the ultimate Picture-in-Picture experience?" "I guess the things that are important are:

1. 16 channels and the ability to combine multiple screen areas to have 'larger' screens.
2. Ability to convert input signals to BNC jacks (which is most boxes I see) or have 'normal' inputs: composite/svideo/component(doubt that last one).
3. Likewise, convertible or normal outputs.
4. Comes with remote control and on-screen-display for setup(don't want to mess with a serial interface).
5. Audio inputs/outputs would be nice, otherwise I would need a similar 16-to 1 audio switcher with remote.

I don't care about alarms/video signal loss/motion capture, so those features I could take or leave.

Another related question is how to provide 10+ cable/satellite inputs that are controllable with a single remote without having to have a freakin' rack of VCRs or other boxes."