Comment Re:Not "360p" (Score 1) 57
It also depends on how effects-heavy the show was. Older shows shot on film and edited on film are pretty easy to re-scan in HD. Then you get to the 90s and you get shows like Star Trek: The Next Generation that were shot on film but edited on video—Paramount had to go back and re-edit the entire series, and redo a lot of the effects like phaser beams that were done with video paintboxes, to get an HD version.
One of the saddest cases is Babylon 5. The show was shot on film and protected for 16:9, because Straczynski saw HD coming. But the effects were done with early CGI, and so they were all rendered at 4:3 480i. And for various reasons including studio stupidity, nobody saved the raw CGI effects data, so it can't just be re-rendered on modern equipment—they'd have to redo all of the effects from scratch. When WB did a 16:9 DVD release, they didn't even bother re-rendering scenes with "video paintbox" effects like blaster fire; they just cropped the 4:3 480i down to 16:9 and upscaled those scenes (poorly).