I was thinking ALL Amigas can probably cope with the following video format:
16 colors at 320x200 (NTSC low-res) with 15fps:
video: 320x200x4bitsx15fps = 3840000 bits/s
audio: 2channelx8bitx27429hz = 438864 bits/s (aprox. 54kB/s)
Total datarate= aprox. 523 kB/s. Rounded up
Imagine an A1000 playing a movie with this resolution, it should be doable. Of course you could apply compression to save disk space with those open source already available XAD libraries.