Originally posted by: ViRGE
Originally posted by: KLin
Originally posted by: Feldenak
Originally posted by: Feldenak
Originally posted by: blurredvision
My local Time Warner quietly added TBSHD earlier last week as well. Over the past year with TW, we've went from 1 local HD and around 5 national HD channels to 2 local HD and around 9-10 national HD channels. It suddenly doesn't even compare to the new HD stations that went live on DirecTV, though. If the HD package from DirecTV doesn't suffer from their typical "HD-lite" down-rezzing, then I be very tempted to switch over.
What's this HD-lite down-rezzing business?
I think he's saying directv does a lot of compression on their hd-feeds.
They're doing several things. First they're using MPEG4 AVC(H.264) instead of MPEG2, which is technically more compressed in the first place (but it can achieve the same quality at lower bitrates). Second is that they're reducing the resolution of most HD channels that use 1080i, from 1920x1080 to 1280 x 1080, which does create a loss in quality. Finally they are compressing their HD streams further than what's needed to maintain picture quality with the MPEG2 version, causing a further drop in picture quality.
It's still a hell of a lot better than SD, but an unmolested HD feed is better yet.