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Originally Posted by AberNStein

as i understand it, they'll be experimenting with the rear projection screen until they get something useable and cheap. i've never built a rear projection screen (let alone set one up), but we'll be able to control the light hitting it, so contrast should hopefully be OK
the image quality and definition on the 'tv wall' is not an issue. figures and faces will be discernible, and the 'grungy' look of a video camera filming a tv is exactly what we want
the only thing i'm really concerned about right now is the input switching for the three screens. i may well have to get just one continuously playing dvd for each screen, and then put them all in identical dvd players and press play with a remote to synchronize.
i feel like i'd need to rent three video mixers to do what I need

Give the DVD players a try, its worth it. You can even cover up the IR reciever on one if you need to play two, it works...