Near Death Experience

A character has a near death experience (either for real or in their mind), and they start acting sage-like, lecturing others about living life to the fullest.

The Mary Tyler Moore Show

Appearances

• The Mary Tyler Moore Show: Season 7, episode 5, "Ted's Change of Heart" (1976). Ted has a mild heart attack, and the experience gives him an overly positive outlook on life that at first gets on everyone's nerves but then becomes contagious.
• Cheers: Season 3, episode 11, "Peterson Crusoe" (1984). Norm gets a physical for his new job, and he's terrified when his chest X-ray has a spot, but it turns out to be a flaw in the X-ray, and Norm, relieved that he's not dying, has a new lease on life. He quits his job and tells everyone he's sailing off to Bora Bora, but he secretly changes his mind and hides out in Sam's office instead.
• Mr. Belvedere: Season 3, episode 3, "Debut" (1986). George almost dies when he drops a TV into the bathtub while taking a bath, and he changes his whole perspective on life. He quits his job because he doesn't think sports matter anymore.
• The Golden Girls: Season 2, episode 15, "Before and After" (1987). Rose passes out from an "esophageal spasm" and thinks she died and went to heaven, and it changes her whole outlook on life, causing her to make new friends, try new things, and be busy 24 hours a day in her attempt to "make the most out of life," and it's driving the rest of the gang crazy.
• The Golden Girls: Season 7, episode 10, "Room Seven" (1991). Sophia chokes and passes out, and she has a vision of going to heaven and seeing her late husband, Sal, which makes her start doing reckless things in her attempt to live life to the fullest.
• 3rd Rock from the Sun: Season 4, episode 22, "Near Dick Experience" (1999). While Sally, Harry, and Tommy are arguing with a waiter over a table, a giant chandelier falls and crushes the very table they wanted. When they realize they could've died if the waiter hadn't refused them the table, all three of them start waxing philosophical about even the smallest, most mundane things, like tree branches, the lights on a liquor store sign, and their shirts. Of course, Dick feels left out, so he manufactures his own near-death experience by almost driving Mary's car into a train. Unfortunately, when by the time he gets home, the rest of the gang are over it.
• Frasier: Season 10, episode 9, "Don't Go Breaking My Heart" (2002). After recovering from an open heart surgery during which he was dead for a few minutes, Niles has an insufferable new zest for life that gets on everyone's nerves, especially when he starts calling Frasier's show to offer alternative advice to his callers.