Well, I am now typing on my laptop running at 1920x1080 @60hz. at a distance of about 7-8 feet and the font is a bit small in the reply window to see clearly but the forum messages are fine when I set the desktop to 120 dpi fonts. I also have some video noise on a dark backbround but it may be the DVI to HDMI cable that comes with the HD Tivo. Will try with the one that comes with the unit next otherwise may have to invest in some good shield cables (just change to the DVI to HDMI that came with the panel and the noise is gone). The one concern I have is that the next lower supported widescreen resolution is 1280x720 (which I don't have on my laptop) so I have to see if I can come up with a hacked driver that let me customize my res.
Ok, onto the PC performance. Once I have the good cable hooked up. Things were as great as what others have said. I played a bunch of WMV HD samples both in 1080p and 720p and they are all stunning. I didn't have a chance to try HL2 yet but I ran City of Heroes in full screen and windowed mode and things works great. I did have a bit of clipping on fast movement but that's probably my laptop GPU hitting it's limit. It should be a lot of fun when I get the shuttle box home from the office with it's more powerful graphics card.
On to Component input, I switched my HD Tivo from HDMI to Component since I have that HDMI output problem with the HD Tivo (hopefully will update software later tonight). Since I mentioned in my earlier post that I won't be depending on the built-in ATSC tuner much. My observation is going to be mostly by playing recorded SD and HD programs, SD and HD Broadcast and switching the HD Tivo output format between 480i, 480p, 720p and 1080i using the component input.
1st up, we got recorded SD shows in 4:3 mode:
480i looks preety good, not the quality of my 35" JVC tube but acceptable. 480p gives about the same detail but the color seems richer. 720p is about the same as 480p with a bit better detail and 1080i offers the most detail but the color is not as rich as with progressive scan. The difference is so fine that unless I freeze the picture (which does induce a bit of noise). You will have a hard time telling the difference. At 1080i it's very close to my CRT.
One problem that you will have with SD broadcast in widescreen format. You either leave it in 4:3 mode and get a reduce size image with black bar on top and bottom like on standard 4:3 set or you use one of the zoom function. Unfortunately none of them will give you a perfect stretch. The closest you'll probably get is the full zoom option but you'll lose a bit at top and bottom during the program and a lot when commercials are playing.
For HD recording, I selected a variety of programs. I got Discovery HD from DTV and OTA broadcast of network TV series like NCIS, Lost (which I was told most were upscan to 1080i from a lower source) to The Tonight Show (which is suppose to be true 1080i).
One thing for sure, I can definately tell the difference between the series type show and the live shows. Switching between the varies output mode produce about the same results on the color richness and the difference between each resolution jump is more dramatic.
This is getting a lot longer than I intended so I'll be brief on the live TV experience. I guess the HD Tivo deserve the credit as there is very little if any difference between the recording and live version of the same show. The easiest way I tried was to tune to a program live and hit pause, wait a few secong and hit play and watch from the buffer. I don't really notice any difference between the two.
Bottomline. switching betwen the varies output mode on component will produce pictures of different detail and color saturation but they all look very good and while the 480i image is not quite up to the standard of a CRT. The difference in not large enough at a distance of 7-8 feet for me to feel it's a problem.
This is also taking a lot longer than I thought, I started this message about 2 hours ago and have been writing as I tried thing out. I;m going to take a break and actually watch something on this thing for fun. I'll get to the DVD performance over component later (maybe when I get my xbox back this weekend)