Radio: Electronic Cupid

With a blinking of lights, a digestion of digits, and melodies played out on a monochromatic scale, the giant electronic brain took over TV last week. The machine proved itself a better matchmaker than oddsmaker. Before election night was over, CBS's Univac Babysitter Doug Edwards wearily offered to give his magic brain (estimated cost: $1,000,000) to Commentator Walter Cronkite for Christ mas. But on NBC's popular, 16-year-old stunt show, People Are Funny (Sat. 7:30 p.m.), Remington Rand's Univac No. 21 turned Cupid, brought together a flesh-and-blood couple as scientifically selected "ideal marriage...