How large and how high is the resolution of an HDTV video if I watch it on my computer?

The 1080i format of HDTV, when displayed on a computer screen, specifies a screen resolution of 1920x1080.

The picture resolution of your old SD television is this: (640x480)

The resolution of HDTV 1080i is: (1920x1080)

Click here to open new browser window for 1080i sample.