Almost every TV you will ever see is a complete rip off. You think it takes 9 big ones to make a damn TV? Think again. In addition, all the specs the salesmen give you are complete bullshit, and the specs on the TV box are bullshit too. Hell, the TV I bought SAID it had a comb filter, but then I found out it doesn't. I got fricken screwed.
TVs are nothing but lies On Fri, 31 Dec 2004 14:22:55 -0500, Michael T. Dean <[EMAIL PROTECTED]> wrote: > While writing the below response, I started to wonder if there are *any* > HDTV's available with 1920x1080 pixels. More info below. Keeping it > short for those who just want to get to the point... :) > > On 12/31/2004 11:55 AM, Kyle Rose wrote: > > >FWIW, I hate interlacing. Interlacing was a technology devised to > >overcome a limitation of one kind of display technology and should > >have been deprecated with the advent of DTV. Sorry to open THAT can > >of worms; just my $0.02. :) > > > > > The limitation: bandwidth. > > If interlacing is no longer relevant in the age of digital TV, that > implies that we now have unlimited bandwidth. However, looking at ATSC > high-definition TV, we have two primary modes: 720p ([EMAIL PROTECTED] > (fr)/sec and 60fields (fi)/sec) and 1080i ([EMAIL PROTECTED]/sec and > 60fi/sec). (Yes, I'm ignoring the 30fr/sec with 30fi/sec, and the > 24fr/sec with 24fi/sec progressive modes available for 1080 and 720 > resolutions--not to mention the 12 other formats with lower resolutions.) > > So, what is the purpose of 1080i? Basically,it allows higher resolution > at approximately the same bandwidth. 720p gives 921,600 pixels and 1080i > gives 2,073,600 pixels--more than double the pixels of 720p. However > both 720p and 1080i take approximately 3MHz bandwidth, compared to 6MHz > for NTSC (HDTV takes less bandwidth because of the compression that's > possible with the digital signal). So, if 1080i takes half the > bandwidth of NTSC, why not make it [EMAIL PROTECTED] Well, the broadcasters > feel that the benefits of the progressive format are not worth the cost > of the bandwidth--i.e. they would rather be able to transmit twice the > number of channels (=2 times as much space for advertisements) in the > bandwidth they have available. > > Therefore, 1080i yields a much better picture than 720p for > "slow-changing" scenes: it is not ideal for sports or other shows that > are composed primarily of fast-motion scenes. Given that in most > television shows--dramas, comedies, news, etc.--the fast-motion scenes > are a very small percentage of the show, 1080i allows much better > overall picture quality. > > Of course, since nearly all HDTV's on the market have only 1280x720 > pixels, the quality benefit is chiefly available to those people using a > computer to output to something other than a TV (i.e. high resolution > monitors (such as WUXGA) or--for those with a lot of extra cash lying > around--a projector with an extremely high optical resolution that can > fully resolve 1920x1080, like the Runco DTV-1200 ( > http://www.runco.com/OP_PA_dtv1200.html , MSRP $44,995.00)). > > But, wait! My TV says it supports 1080i. It does. It accepts a 1080i > signal, deinterlaces it, scales it down to 1280x720 pixels, and displays > it. Therefore, the TV's available today completely negate the advantage > of 1080i (better picture quality) by scaling down to 1280x720 (which can > even produce a lower-quality image than an unscaled 720p image). > > So, are there any real 1920x1080 TV's out there? I figure if I'm buying > an HDTV, I'm not wasting money on a 1280x720 one, but I can't find any > 1920x1080 TV's. Toshiba used to have one ( > http://www.tacp.toshiba.com/televisions/product.asp?model=57HLX82 , MSRP > $8999.99), but now that they've gone exclusively Digital Light > Processing (DLP) (instead of the Liquid Crystal on Silicon (LCOS) they > used for the 1920x1080 TV), it seems they only have 1280x720. I'm not > willing to spend on a projector more than twice what I spent on my car, > so the Runco is out of the question. Anyone know of any others? > > It looks to me like I may be sticking with SDTV for several more years... > > Mike > _______________________________________________ > mythtv-users mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > -- ------------------------------------------------ I have one Gmail invite left, email me to grab it!
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