LCD rear projection and LCD flat panels are different products and bear decidedly different prices (flat panels are way more expensive). Neither one of these technologies has any problems with burn-in. DLP sets can have more vivid colors and sharper, smoother images than LCD projection screens, but due to their technology which uses a spinning color wheel over a light source, some people see visual artifacts like rainbows. If you sit in front of one in a store and watch for a while, and don't see anything strange, you are probably fine. At some point there will be multi-chip sets that don't use a color wheel and thus have no rainbow issue--professional DLP systems are like that now. There are also LCoS (liquid crystal on silicon) projection TVs that have higher resolution and good color, with no rainbow effect and no burn-in, but those tend to be larger and heavier than DLP or LCD projection TVs, and can have focus problems at the edges. Easiest way to pick: go to a store that has well-calibrated sets, watch them, and pick the one you like the best. Or pick on price. I know people with all kinds of TVs and rarely hear complaints other than "I bought too small of a set to watch DVDs" or "this set is too large for this small room"