Yep - all Short Circuitz was was (was was?) clips from Imaginaria and The Mind's Eye. YTV bought the rights to show 'em, and chopped them up into the Short Circuitz segments. Both were available on VHS and Laserdisc, there may even be some DVDs floating around out there somewhere... Most of the animation from those was from the early-mid 80's, waaaayyyy before Reboot for the guy/guyette that was asking. The original animation was actually several completely unrelated segments by several completely unrelated companies.
My favorite of the Mind's Eye vids was Beyond the Mind's Eye - which featured an original soundtrack by Mr. Miami Vice Theme himself, Jan Hammer. Actually the third one, "Gate to the Mind's Eye" was cool too, featuring music by Thomas Dolby. The animation in all of them is quite dated now, but I love that "old-school" CG stuff.
Hell, TRON is still one of my all-time fave movies (and yes, I know that the majority of what we see in TRON isn't actually CG at all, but what there was was (was was?) quite cool and still is).
Well that's enough of my tangent-filled ramble for today. :D
- Sean