Seinfeld

The sixth season of Seinfeld featured an episode titled "The Pledge Drive." According to TV.com, in this 1996 episode:

Jerry comments that a friend was hitting on him and Elaine tries to find out if what was true, but gets the voice of the woman and her current boyfriend confused. Elaine's boss eats his Snickers bar with a knife and fork and idea that soon catches on. George thinks a waitress gave him the finger. Jerry gets caught throwing away a thank you card. Jerry cashes some old birthday checks from his grandmother. Jerry's working a PBS pledge drive and gets George to bring a Yankee to appear with him, while en-route to the studio, someone gives George the finger.

Obviously, the relevance here is found in the connection to the PBS pledge drive -- specifically during the scene when Kramer is having a conversation with the "high talker." Take a look at the poster to Kramer's right.

Notes

The poster seen in the background is the 1983 "We're Glad to Be Your Neighbors" poster.