720p or 1080i ???dont know??

1080i is better than 720p, make sure your tv can support that resolution.

I wouldnt suggest setting it to specificly 1 thing, if you have the options which should be 1080i 480i 480p and 720p unless your TV supports the 720p stay away!! LOL it will jack things up and not many companies broadcast in it. Other than that, if you can try to set all but the 720p and you should be fine, your tv will automaticly adjust itself to the format that the programming is being broadcast in

Personally, I can't tell the difference. The 1080i is the higher resolution...but its only interlaced, so it supposedly has inferior image quality than a progressive scan capable screen.

I'd suspect that 720p looks a better on a smaller HDTV, and 1080i looks better on larger screens.

actually, all HDTVs are required to support 720p and 1080i.

p and i stand for progressive and interlaced. with progressive, the tv displays a new image 30 times a second. Interlaced is a form of compression where the image is split up into rows of pixels, and the tv only refreshes every other row at a time, but at a rate of 60 times a second. progressive is better, because interlaced video has a tendency to blur.

I would chose 720p, but it's really up personal preference and what you're doing (watching TV vs. playing a video game)

1080i is just upconverted to 1080 but is not true 1080.
1080p is actual 1080 display, so it will look better then 1080i.

TV's are starting to be able to display 1080p, but nothing is broadcast in it yet, but if you are gonna get an HDTV, you mine as well get one that can do 1080p. There should be a local electronics store that should have some TV's running 1080p. Circuit city does, by me at least, has it running images and stuff from content downloaded from the internet on to hard drives. It looks sweet.

http://alvyray.com/DigitalTV/Naming_Proposal.htm

The link above, in my opinion, has the best explanation of the 720p vs. 1080i. The summary: 720p>1080i.

TV's (as far as i know) always have 30fps.

the reason they all have 30fps is that they are designed for the hdtv input, which is only 30fps.

interlaced video, even though it refreshes 60 times a second, only refreshes half the image at once, so it's really 30fps.

For video games, to avoid blurring, I would definitely use 720p

720p > 1080i
1080p = best ATM.

1080i is good for still images and that's about it.