My screen is around 110"(when I have a working PJ), I only grab full discs and the occasional mux(prefer to mux myself) as difference in resolution is visible IMO.
I'm jealous! I was at a relative's house watching NFL football on a TV like that with a full 1080 HD broadcast and you could see every individual blade of grass on the field. (Plus the relative had home theater sound.)
Re divX <- What a totally sucky way to encode. a SD divX looks blurry with poor resolution even on a 13 inch monitor. The other type of encode I hate is .wmv .