Letterman served as host of 1,810 "Late Night" shows and, as of Friday, 3,186 broadcasts and four primetime specials of "Late Show."
"(People) say to me, 'Dave, what keeps you working night after night, week after week, month after month, year after year after year? Seriously, why do you keep working?' And I just tell them, 'Well, Foxwoods gambling resort,'" Letterman says in his monolgue for Friday's edition of "Late Show," which features appearances by guests Bruce Willis and LL Cool J.
Workers accuse National Zoo of animal mismanagement
Couple calls 9-1-1 over missing hash browns; assault McDonanld's employees