It’s not often you find longevity on television. Exceptions include Friends and Happy Days, which each lasted 10 years. Lassie was on air for 17 years, and The Simpsons for just over 30. But only one show qualifies as the longest-running primetime drama series—and it’s been going strong for 50
Read MoreIt’s not often you find longevity on television. Exceptions include Friends and Happy Days, which each lasted 10 years. Lassie was on air for 17 years, and The Simpsons for just over