Times Square, NY
Any parent of MTV-age children has probably quarreled over the virtues of doing homework versus watching TRL (Total Request Live), the MTV show. But the books are at home, and you're here. So go watch a live broadcast of the show at MTV Studios.
Kids can catch a glimpse of host Carson Daly and guest stars, just by hanging outside the studios during the broadcast (no one under 18 is allowed inside). Cameras occasionally pan the crowd, so you might even be seen on the show. When heartthrob Daly appears in the second-floor studio window, expect much screaming.
Early-rising fans of ABC's Good Morning America can see that show broadcast from its Times Square studios, too, by hanging around outside weekday mornings. Or, try for tickets inside (kids are allowed).