Seinfeld

Season 3, Episode 13, "The Suicide": Jerry Seinfeld asks "How long do you have to wait for a guy to come out of a coma before you ask his ex-girlfriend out?". To which the character Cosmo Kramer replies "What Gina? Why wait, why not just call Dr. Kevorkian". To which Jerry replies "You know I don't get that whole 'suicide machine', there's no tall buildings where these people live?"

Season 9:Episode 7, "The Slicer": Jerry finally gets in to see Dr. Kazarian, a dermatologist, who gives him aloe for his hives.