The Telecast card just interfaces the Videovision to the digital section of the black box. The Black Box itself is just buffered inputs and outputs from the looks of it (multiple types of analog video, analog and digital audio, sync signals, etc).
I had the PCI version of the telecast for over a decade now and rarely use it because I have a dozen or more editing systems that I have collected over the years (Various AVID, Supermac, Matrox, Media 100, Truevision, Rasterops, DPS, Optibase, etc). If I wanted to dump a VHS to digital I would probably use a Matrox RTMAC on a Mac or something similar on a PC (modern and quick).
For me its just fun playing around with the editing hardware and software and comparing it.
I had the PCI version of the telecast for over a decade now and rarely use it because I have a dozen or more editing systems that I have collected over the years (Various AVID, Supermac, Matrox, Media 100, Truevision, Rasterops, DPS, Optibase, etc). If I wanted to dump a VHS to digital I would probably use a Matrox RTMAC on a Mac or something similar on a PC (modern and quick).
For me its just fun playing around with the editing hardware and software and comparing it.