Originally Posted by GregLee
I would understand "upconversion" to mean the reverse: 1080i to 1080p. If you have a 1080p flatscreen HDTV, it can only display 1080p, and if you send it 480i (cable SD) or 480p (DVD SD), it has to upconvert that to 1080p to display that. A 1080i cable or broadcast HD signal also has to be upconverted to 1080p. I think 1080p consumer TVs can all do this upconversion (I could be mistaken about this, but my TV does), and 750p HDTVs upconvert to 750p (approximately) so you don't need a BD/DVD player or receiver to do this. You might want one to, though, if you think it will do it better than your TV will, to give you higher picture quality. I have compared the upconversion from 480i to 1080p that my TV does with that done by my satellite receiver, and I couldn't see a difference. And DVDs at 480p also look fine after the TV upconverts them to 1080p. I just don't think of this as an issue for picture quality.
No. just because your TV is rated at 1080p does not mean you only see 1080p. Otherwise everything would always look like a BluRay.
No, Up-Conversion will take a less than 1080p and do its best to replicate an actual 1080 image. Its never perfect but has a few use's. Like with DVD's. They look like utter crap without some kind of up-conversion. Another one is Digital TV. If your not using upconversion then the channels aired in 480 look like a postage stamp.
\ I was able to find a nice TV with great picture but NO up-conversion so a lot of TV channels we watch look like a postage stamp unless we use the "zoom" feature. This zoom feature will blow up the image to a large size but does not scale the image quality, infact it get's WAY worse with zoom. Then there is the fact that it chops off about 1" of the picture.
Then there is the quality of DVD's..... its not worth watching.
I'm familure with different TV's ability to upconvert, Same with DVD and Blu-Ray player's. I am no familure with how AV receiver's work as video up-converter's so I was asking about it from people who knew what was going on with upconversion.