the human eye can not tell the difference between 720P and 1080I for the most part.
I keep seeing this offered up over and over- especially in defense of
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TV "as is." But, very simply, this is not true. If that first "the" was switched to "some" and an "s" put on the backend of "eye," then that would probably be true.
I can clearly see a difference between 1080i and 720p. In real world comparisons, it's as easy as comparing sports on CBS (1080i) vs. sports on ABC (720p). It is obviously different- not impossible to see, not slightly better, obvious.
While it is true that iTunes
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TV media is at 720p or lower, it is only a matter of Apple deciding to offer 1080i or 1080p media options, and the studios agreeing to let them. Because they don't offer 1080 media now shouldn't be justification for not having an
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TV 1080 model now. Using that logic, they shouldn't have offered an
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TV at all, since iTunes used to have only SD (some might say "sub-SD" resolution) media only.
Yes even broadband connections might involve significantly longer download times vs. 720p files. Yes, the buyer of 1080i/p downloads will need a lot more storage space for the same movie (hard drives are cheap). Yes, 720p can have an advantage relative to macroblocking when the camera is making rapid movements (though I've found this tends to be blown out of proportion when used in defense of 720p; I've seen a lot of 1080i sports with rapid camera movements and not much- if any- macroblocking- 1080i done right can hold its own just fine).
I for one am frustrated that Apple is not offering a 1080i/p
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TV. It makes the
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TV the weak link in the entire chain. What chain? It is within reach of consumers to own 1080 HD camcorders these days (< $1000). If they've bought a computer in the last few years, they probably have the horsepower to convert that video to 1080 Quicktime/H.264- even the free iMovie can do that. If they've bought a digital camera in the last 7-8 years, they've probably got a decent- perhaps large- library of precious photos at resolutions well above 1080p. If they've bought an HDTV in the last few years, it probably has the ability to display 1080i, and many these days offer 1080p (gimmick or not). So even if the studios or Apple would not initially offer 1080i/p content, there is still a ready source of 1080i/p content for consumers.
Only
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TV- because of an arbitrary decision by Apple that 720p is "good enough" for us- stands as obstacle between being able to show 1080i/p media on our 1080i/p TVs. It's not a cost thing either, because you can buy 1080 playback hardware in blue laser DVD, HD camcorders, etc. for very little cost.
Back to point though. I have a fair amount of home video shot on the Sony HDR-SR12's HD camcorders hard drive. It can output component so I link it directly to the HDTV and the images are incredible. Compared to those same images converted to 720p for
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TV, it is night & day. To my eyes it is more noticeable than comparing a 720p movie to a DVD quality version of the same movie.
Apple is missing an opportunity to sell more
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TVs by NOT offering one with the hardware to play back content at "true HD" (again gimmick or not) resolutions. For those that join the HD market these days, they are pitched on 1080p being "true HD." When Apple is selling something that maxes out at 720, even a Joe Sixpack can recognize that shortcoming.