Originally posted by: wmgan
I may be completely off the mark here, but I'm thinking that resizing analog video would not introduce ugly artefacts like resizing digital video would, since the resolution of analog video should be practically infinite

Analogue video doesn't have a (horizontal) resolution like 720 pixels per line, but it still only has a finite amount of information, as does a photograph on film. You might not see digital artefacts like blocking when you zoom up an LD, but you will see dot crawl and colour bleeding and lower resolution (in the sense of having enough information to resolve objects, lines, etc).

DE