113 of the Longest-Running TV Shows Ever (Bored Panda)

"Some television series fizzle out right after their first seasons. There are also ones that run for five honorable seasons or so until reaching their conclusion, but how about the television series that have counted, say, fifteen seasons? The longevity of such popular series is no accident, and their fame is made up of quite a few important factors. For starters, the premise seems to always be either highly relatable or something that we'd love to relate to. Then there's the plot - it just has to have twists! There must be thrills, spills, and unexpected events. As for the third factor, the series must have a cast of the most talented and loveable actors. And the last, we guess, would be the series' marketing. You'll find our list dedicated to the longest-running TV series ever. Some are pretty old school, while others are a bit more recent. We hope that you'd find something to your liking here!" - boredpanda.com