Video: And Now, Fernwood 4-Real

Laid-back David Letterman tosses a late-night comedy salad

Hi there, night owls! Have we got an extravaganza for you tonight! If you're thinkin' of goin' to sleep, forget it. You won't forgive yourself if you miss . . . the man from the Potato Museum! Later on, you'II meet the guy with the Worm Farm—yes, a colony of live worms to enthrall you tonight! And as if that weren't enough—and you'd better believe it will be—we have an investigative report on . . . Celebrities and Their Dry Cleaning! More Stupid Pet Tricks! An in-depth...