about the countdown clock. and you're like this is ground breaking. >> i want to take a look at one of your favorites. this is one of your favorite moments on the show. take a look at this. >> sure. >> our old friend peggy, the foul mouthed chamber made. here she is. nice to see you. >> you're so full of. [ bleep] i just hope your [ bleep] falls out. you. [ applause ] >> so you wrote that. why was letterman and peggy the foul mouthed chamber made such a game changer. >> fist ofrst of all that kathleen acres and she worked down stairs p. and what's ground break bout it is up until that point, no