Roger Ebert bids farewell to the movie review show he co-hosted with Gene Siskel and later with Richard Roeper. I wonder how many people in this country adopted the movie-picking policies of a couple of friends of mine. It was to scratch off their possible viewing list any film which either TV critic gave the old "thumbs down." My buddy Dave once explained, "I can only spare the time for a certain number of movies per month. If I pick from the list of those both guys liked, I have more than enough to pick from."