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Originally posted by: cubebox
I was talking about HDTV standard in general.
But i didn't know this what you are saying,i have a regular TV set. In fact i don't even
use it much,i watch TV on my computer with a tuner card.
By the way analog television is not 640x240.
First of all there are no pixels in analog television,just lines,and those lines
have continuous signals so you cant really talk about pixels here.
And the number of lines is not 240,it is 625 for PAL and 525 for NTSC.
First of all you don't account for two things. One 525 is all the lines but only 480 of them are displayed. Where the other 45 lines go I have no idea. There is also interlaced scanning. In interlaced scanning only half of the 480 are displayed. So only 240 vertical lines are displayed on an analog television. Thats why DVDs look better progressive. With digital television and progressive DVD player you are seeing all 480 vertical lines so you get a far better image.