Hello
the OCS displays either PAL or NTSC, while an ECS can display both.
What happens with those A500 and A2000 which have the ECS Agnus but OCS denise? My guess is that they can display both modes since it should be Agnus who controls video beam timing, and indeed that's what happens with WinUAE. But I would like to have this confirmed by someone who has a real Amiga with ECS Agnus and OCS Denise.