Before Cartoon Network’s Adult Swim block of adult programming, there was Nickelodeon’s Nick at Nite, launched in 1985. The programming block, which is still on the air today, caters for older audiences isn’t as loose as Adult Swim in terms of risqué content but it’s far from puritanical.
Back in 1999, there was a short called The Brady-Nixon Connection which looked at certain similarities between The Brady Bunch and President Nixon. In truth, there was no connection but it served as a unique way of promoting the show which aired in 1995, 1998–2003, and 2012.
(h/t Boing Boing)