The longest-running medical drama of all time is an unsurprising streaming hit

TV’s longest-running primetime medical drama, Grey's Anatomy, is still pulling in patients and viewers on multiple streaming platforms.
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The Longest Running Nickelodeon Cartoons

Hey Arnold! ran for 100 episodes from 1996-2004 due to memorable characters and quirky art style. Teenage Mutant Ninja Turtles aired 124 episodes from 2012, demonstrated immense popularity. Blaze and ...