One thing to consider--the quality of the HDTV you will buy. On some of the better sets, and especially on a front PJ setup with a doubler, the prog scan DVD does an inferior job compared to the scan conversion available in the TV. I have tried a Pioneer Elite PRO710 both with progressive and standard outputs from a DV37 DVD, and I can't say that one was actually better. Different, with varied strenghts. It could depend on your tastes, the quality of the DVD transfer, or even room lighting. The closest association I can give is comparing an outboard DAC to a high end one box CD player--which component has the better convertor? Hope this makes sense to you. The upshot is if you buy a lower end HDTV, the progressive DVD can make it look a lot better. But you still have to suffer when you watch any other video source.