The picture is incredible - I know, I bought a HDTV-capable TV a few years ago, then bought an HDTV satellite receiver (RCA) to get the signals. Works great with my satellite service, DirecTV.
They are worth it - I am VERY happy I didn't wait a few years for the price to go down.
When you go to buy one, if they are HDTV-capable, it simply means you'll have to buy a set-top receiver box which will convert the analog signals to high-definition signals and feed them to your TV - that's what I have.
A HDTV-ready television means it has a receiver built-in - make sure you completely describe to the salesman whether you're getting cable or satellite, and from WHOM, to ensure you'll be able to RECEIVE high-definition signals on your HDTV television.
Please understand that you don't even need cable or satellite to get high-definition programs - it depends on where you live. I cannot speak for cable, but in Kansas City I have the DirecTV satellite (the dish I have receives all THREE satellites) and I have a separate old-style TV antenna mounted on my roof.
Some of the TV stations in KC are transmitting HDTV signals (or at least DIGITAL signals), over the air - so for example tonight, I switched the input on my receiver to the TV antenna and got the Raiders/Broncos game in true high-definition, because the local ABC station is broadcasting the MNF game signals over-the-air in high definition, and my RCA receiver translates that signal to one that my TV can display in high definition. It was GREAT!!! Far better than watching the game on DirecTV, on the same receiver but through DirecTV which only broadcasts our local channels in DIGITAL resolution, which is NOT ANYWHERE CLOSE to high-definition.
Other over-the-air stations in KC are being mandated to provide true digital channels soon, but whether they will use that bandwidth to transmit TRUE high-definition signals remains to be seen.
In the meantime, I've forked over an extra $10.99 per month to DirecTV to receive a small number of additional channels broadcasts in high-definition - foremost among these is the ESPN-HD channel, which most of the time is not in high-def but looks fine anyway.
Since I pay for the standard HBO channel package, I also get the high-def HBO channel 509 - watching Tony in the Sopranos is fantastic.
Also, I always pay for the full NFL package on DirecTV. This year, without additional charge, they are showing select games in either high-def or high-resolution in the low 70's channel range - for those who don't know, the new digital standard allows for 18 different transmission resolutions, with 740 'progressive' and 1080 'interlaced' commonly being known as 'high definition'.
Finally, make sure you have a DVD package (a DVD and a blue plastic strip) that allows you to set your HDTV TV to the proper settings to get the best possible picture. It makes all the difference - DVDs like 'The Gangs of New York' look unbelievable on an HDTV with a high-quality DVD player that has progressive scan. And if you have the cabbage, pick it and spend it on a theatre-level Dolby Digital 5.1 or better system that will allow you to FEEL the movie as well as see it - I play the remake of 'Godzilla' for guests, the scene where he's tearing through NYC, to show them what my system is capable of - usually they're behind the couch before the end ...
[This message was edited by Jazz on September 23, 2003 at 02:00 AM.]