Go with a flat panel LCD...you won't have to worry about any burn in effect and you can use it as a large computer screen. As far as your other question, LCD Vs. EDTV...LCD is a technology, EDTV is a type of signal..LCD's can be found in both EDTV and HDTV types, I would recomend a HDTV in a larger set to take full advantage of the HDTV resolution...