It's been common videophile wisdom that if you own an HDTV that has a native resolution of 720p, you will achieve the best picture quality if you feed it 720p signals. The rationale is that outboard video scalers are generally more capable than internal scalers.
This is absolutely not the case with 720p-native Samsung HL-Rxx67W [samsunghlr4667wservicemenu, samsunghlr4667w, samsunghlr4667wsettings] series DLP sets (mine is the HL-R4667W). The internal scaler, based on the ATI Xillion chip set, is the best video scaler I've seen. There is no comparison to the internal 720p scaler in my Comcast HD cable box - the Samsung scaler absolutely blows it away. If you have an outboard HDTV receiver, like a cable or satellite box, set it to output 1080i or pass through a native signal. The picture quality difference is outstanding.
Combined with the wobulated diagonal pixel pattern, the ATI scaler gives 1080i a much better picture quality than on my old 1080i-native CRT HD. On the Sammy HD, 1080i simply looks far better than 720p.
Say goodbye to the old 720p rule-of-thumb. With this new generation of HDTV's, feed your Sammy the highest picture resolution possible. You'll love what you see.
