Cheers, and like you said, as most games and demos don’t use interlacing (except for maybe a few static loader screens), it’s not very important.
Btw, these are the only occurrences I can remember from many years of Amigaing
Games: Shadow of the Beast (static intro picture), Fish! (static intro picture), Hollywood Poker Pro (yeah…), the updated versions of all Magnetic Scrolls adventures with the windowed interface (I much prefer the originals)
Demos: Spaceballs – 9Fingers (loading screen), Andromeda – Seven Seas (last scroller part)