F.C.C. Orders AT&T to Shed Some Assets
Federal Communications Commission orders AT&T Corp to sell its interest in Time Warner Entertainment, after officials conclude that company has been trying to wriggle out of earlier commitment it made to win government's approval of MediaOne; if AT&T fails to overturn order, it would untangle partnership that consumer groups have been criticizing for months because it combines nation's two largest cable companies, which together control 50 percent of market; ruling throws into question AT&T's plans to sell its stake in Liberty Media, company that owns stakes in programming companies and is controlled by entrepreneur John C Malone (M)