"The 84th Annual Academy Awards" -- It's Billy Crystal to the rescue. The genial comedian returns to host the Oscar telecast, stepping in for Eddie Murphy, who flaked out back in November. It will be Crystal's ninth time as emcee (second only to Bob Hope's 19), but his first in nearly a decade. So expect a return of his popular opening monologue where he inserts himself into scenes of the nominated movies. As for the films themselves, it's shaping up to be a big night for "The Artist," a delightful production that proved you don't have to talk a lot to make a good impression. Now, if only the winners would keep that in mind when they make their acceptance speeches. 6:30 p.m. Sunday, KTVX Channel 4.