 Each Season of UCB thus far has a running joke that culminates in  the seasons final episode. The skits will make passing reference to  the running joke in each episode of that season. For example: the  first seasons running joke was the Titte Brothers, a fictional pair  of performers. They appear in the last episode of the first season  when they perform a charity concert for the Little Donny Foundation.  The second seasons joke was Supercool, a highly addictive sugar  candy. The second season finale focused on the Supercool smuggling  ring headed by the UCB. The third seasons running joke was Pro  Thunderball, a hyper