I've never seen DLP rainbows on a screen before. Whether FP or RP. I have however seen them while looking at a projector before, just as you mentioned.

Having never seen them on the screen, DLP has been a big contender in my search for a new TV. The "screen door" of LCD on the other hand has been quite noticeable on many sets I've seen...depending on make/model.

Given the size of my room, and the space I have to put a tv, a flat plasma or LCD is starting to gain ground on my DLP plans. There's so many different dang TV's now...very hard to make a decision.

One thing for sure though...it'll be 1920x1080 or I won't buy it.