I bought a 7" LCD from KMart for setting up security cameras- $89 and it's battery powered/DC adapter with ATSC tuner and a composite video input. Beats the he!! out of the ones sold by my distributor for $300 and it does the same thing. If I drop it, I don't lose as much and if I buy the protection plan, even dropping is covered. It makes sense to use a separate display for setting up Audyssey- much better than firing up a projector or other display that doesn't like being turned on for short periods.