.....At one point I know that Digital Creations, and their partners from Progressive Image, had talks with Commodore about selling CBM the DCTV technology for installation into upcoming Amiga products (this would have been about the time the A4000/1200 was in development). I think CBM compared DCTV to the AGA concept, which they owned, and decided not to pay Digital for the rights to use DCTV technology.
Actually the tech was to go into CDTV, in fact they demoed it as a addon card at Devcon 91, full NTSC color animation off of the CDTV with the card. I'm not sure why it fell through, though it may have been that they thought the 3000+ would make it obsolete, and they may have it we had actually gotten A3000+, instead of the hacked up A4000s at a much more expensive price.
-Tig