People have been bugging me to give "24" a try for five years now, but I've resisted, not wanting to risk liking it and having to commit to 24 episodes of something in a row. This year I gave in, watching the two-part, four-hour season premiere Sunday and Monday nights. My fears were justified -- it is compelling television, and I'm probably hooked for the rest of the season. How can you not be caught up in a show whose first two episodes start with a bus blowing up and death by biting out of the carotid artery and end up with a nuclear bomb going off in Los Angeles?