ANYTHING goes on cable television in North America, it would seem. Reports from the US last week announced that a 24-hour cable TV station devoted to covering computers will start broadcasting today, with reviews, instructions, shopping, and discussions on anything related to PCs, including information politics and policies. Beamed from a Denver suburb, the programme should reach Los Angeles, Chicago, Washington, and Denver on the Jones cable system, a channel that has attracted some big-name techies, including Guy Kawasaki, who will host a weekly discussion panel featuring industry leaders. One has to wonder whether there is enough sustained interest to support a 24-hour computer television network. After all, most techies want to spend their waking moments in front of a different kind of screen. HERE in the territory, System Pro in Taikoo Place held a clearance sale last week which, if their adverts could be believed, was expected to have incredible bargains.