Well, looks like I misremembered. I have both the "slim" LG 30FS4D and the non slim 30FZ4D; the input panel shows it accepts 480i, 480p, 720p and 1080i. I do remember a lot of older HDTVs (CRT and otherwise) could not draw a signal from 720p sources, probably because many of them actually predated 720p as a broadcast standard, and the AV crowd started to gear toward it rather than 1080i. So there was a lot of "no CRT can do 720p" before 1080p became the next big thing, looks like that was why it stuck in my brain whern I got these sets that can do it, sorry about the confusion. I would still think I probably have a few broadcast monitors that can resolve a 1080p feed, with a little trickery and a hell of a manual tweak for screen area as they are only 4:3, but that's not common use even for those screens.