Comcast Begins Converting 1080i Channels to 720p to "deliver superior video."

[dubious]

Originally Posted by Naiera

That's cute. I have a Lumagen RadianceXD feeding a JVC X30 projector.

Just because a 1080i signal is de-interlaced it does NOT mean it's equal to a 1080p signal. It's not just math.

When the fields match, the luminance data of 1080i is 225% that of 720p. 1080p definitely offers benefits of dropping blended fields and accurate chroma, but that hardly qualifies a 225% drop in grey-scale resolution to put 720p on a pedestal as superior delivery format over 1080i. In motion 1080i looks much better in motion, I can really only notice interlacing when I hit freeze frame on my tv and stand a foot away from it. Interlacing is far more noticeable on 720p native channels that run interlaced advertisements presented in a field-blended mess of upscaled frames. If normal 1080i looked anything like an interlaced source field-blended in a 720p signal, I'd be inclined to agree with you, but it doesn't.