'I'm listening.' For 11 seasons, that's how Dr. Frasier Crane answered the callers to his radio show, and viewers all around the world.Dr. Crane may not have been the most popular character on Cheers, nor would Kelsey Grammer have been the most likely of the show's stars to get his own series, yet between 1993 and 2004, Frasier was one of the most successful sitcoms in an era of all-time great shows.Frasier is still beloved by millions today, whether they're just discovering the radio shrink, his snooty brother, cranky father, kooky housekeeper, and sassy producer on streaming services, or whether they've tuned in to the Crane family's Shakespearean mayhem for the best part of almost 30 years.SAMPLE QUOTES: 'It may be an unwise man who doesn't learn from his own mistakes, but it's an absolute idiot that doesn't learn from other people's.' Frasier dispenses his best advice in 11 years while off the air.'I used to think there was some sort of mix-up at the hospital when Frasier was born. Of course, when Niles came along, it shot that theory all to hell.' - Martin Crane.