A special edition--Information for People Who Can Take It Straight--is a   full-scale invasion into the computer age conducted by mega-hostess MacDonna.    View tips for handypersons and upscale house hunters, the whimsy of              computerized martial arts, and an English "industrial music video" set to the  tune of tearing velcro, along with computer-animated frenzy in a dumpster with mime Arina Isaacson. 60 mins.