View Single Post
Old 19-04-2024, 11:13   #8
Chris
Trollsplatter
Cable Forum Team
 
Chris's Avatar
 
Join Date: Jun 2003
Location: North of Watford
Services: Humane elimination of all common Internet pests
Posts: 36,981
Chris has a golden auraChris has a golden auraChris has a golden auraChris has a golden aura
Chris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden auraChris has a golden aura
Re: Rewind TV coming to Sky

Quote:
Originally Posted by OLD BOY View Post
Sounds like rubbish. I mean…SD?
Do you actually understand the technology at all?

If the channel is showing exclusively material that was distributed on analogue videotape for 625 line PAL colour, then that material has been digitised as 576i, the digital equivalent of analogue standard definition. It is a complete waste of bandwidth to carry that channel on a 1080i (i.e., high definition) stream if nothing that channel broadcasts is available as HD.

Even if the distributors originally sent out film prints rather than videotape, which was not unusual especially for material intended to be sold across markets using different analogue broadcast standards, re-scanning them in HD would be prohibitively expensive for a minor TV channel, even assuming the prints are still in a fit state to be simply scanned without any digital touching up being required to repair scratches etc.
Chris is offline   Reply With Quote