@Itstanfo,
The Opalvision card came out after the Newtek Video Toaster card. It was an attempt to do all the Toaster did and more, and to do it in more than one format, unlike the Toaster, which has always only been available in NTSC.
Unfortunately, the extra features of the Opalvision card were never released. The infamous "Roaster" chip was never released (although I did hear of one person who claimed to have received one experimental chip that worked). Opal Paint was regarded by many to be the best paint program available on the Amiga when it was first released.
If there are any users out there that have an Opalvision card with the Roaster chip installed, I would like to see it. Too bad the company went under.