I can see the difference between 1080i and 720p. The 720p is often better. Interlaced is awful for video games. Very blurry. As for video games and the difference between 720p and 1080p, that's a different story. From a distance it's not much difference at all.
You're right about how 1080p and 1080i aren't much different for videos and movies though. If you're not going to use it for a computer or for video games, 1080i is perfectly fine.
The main reason to get a 1080p tv is exactly that, to use it as a computer monitor. I have a 720p one right now, and using it as a monitor is rather inconvenient and has annoyingly high dot pitch. A 1080p TV would be much better. This is at a range of 2-4 feet though, not 10 feet.
Most of the reasons to not sit that close to your TV went away when TVs went LCD. :)
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You're right about how 1080p and 1080i aren't much different for videos and movies though. If you're not going to use it for a computer or for video games, 1080i is perfectly fine.
The main reason to get a 1080p tv is exactly that, to use it as a computer monitor. I have a 720p one right now, and using it as a monitor is rather inconvenient and has annoyingly high dot pitch. A 1080p TV would be much better. This is at a range of 2-4 feet though, not 10 feet.
Most of the reasons to not sit that close to your TV went away when TVs went LCD. :)