huh? 1080i has a resolution of 1920x1080 interlaced, or an effective resolution of 540 progressive lines.

720p on the other hand is 1280x720, with 720 progressive lines.

they're VERY different. the best, and probably settled standard for the next few years is probably going to be 1080p, as more and more movies are mastered nativly into that for HD DVD and Blu-Ray.

 

To answer the question, it's important to understand the difference between 720p vs 1080i. A 720p signal is made up of 720 horizontal lines. Each frame is displayed in its entirety on-screen for 1/30th of a second. This is know as progressive scan (hence the 'p')The quality is like watching 30 photographic images a second on TV. A 1080i signal comprises 1080 horizontal lines but all the lines are not displayed on-screen simultaneously. Instead, they are interlaced (hence the 'i'), ie every other lines is displayed for 1/60th of a second and then the alternate lines are displayed for 1/60th of a second. So, the frame rate is still 30 frames per second, but each frame is split into two fields, which your brain then puts together subconsciously.

 

it doesn't work that way, you don't just halve the interlaced and bang make it equal to progressive lines.

 

the only time 720p shows an advantage is during fast motion like mentioned above, hence why ESPNHD is prodcast in 720p every other HD channel such as NBC, FOX, etc are all prodcast in 1080i.

null debate with 1080p soon to be the new standard, though nothing is broadcast in 1080p yet it's only a matter of time.

 

and actually by your little quote here, you are wrong either way.

1080i = 720p on all aspects except fast motion....sooo 1080i will never look better than 720p but 720p can look better than 1080i in some scenarios.

 

When I got my HD f/ best buy, i did so much research ahead of time, that I brought in a sale paper f/ Circuit city and got that price ($400 less that best buy) AND a percentage off. Price matching + coupon FTW!

 

QFT. The p stands for progressive scan, vs i for interlaced. Basically, all refresh at the same time on P vs alternating pixels on i. this is fine for most stuff, but in action scenes, it can cause a 'flashing' affect due to the alternating rows.

 

Well that's not the way it looks between our two tv's...so either 1080i really does look clearer, or my TV is just way better.

 

I could say that your interpretation of 720p=1080i is wrong too, due to the 125% increase in visible resolution. h:

regardless of how we want to say the same things, 720p generally looks better not only because it's progressive, but because it's much easier to compress a progressive image into mpeg-2 than an interlaced image. for similar bitrates the 720p image is going to look much better.

It's the deinterlacing that the TV does, it converts it to a 1080p signal to view, with decent equipment the deinterlacing process should look pretty good, and due to the larger spatial resolution of the monitor it gives the effect of a better looking image.

 

my dad just bought a 52'' Sharp Aquos lcd tv :run::run: