It is a diuretic and might help remove the extra fluid, eventhough it won't increase circulation. The first medication that was suggested to me for sleep and pain relief was nortriptyline. I take it at bedtime.
You didn't specify prime time or American shows or cable or syndication or anything, so generally speaking, the American soap opera, Guiding Light may be the TV show with the most scripted episodes at 18,262 episodes. Technically it's more since it was on the radio for 15 years prior it moving to TV.
Since its debut on December 17, 1989, The Simpsons has broadcast 578 episodes and its twenty-seventh season premiered on September 27, 2015. The show holds several American television longevity records. It is the longest-running prime-time animated series and longest-running sitcom in the United States.