The first adult animated series Warner Bros. Animation worked on.
In one episode, Kenny, voiced by Diedrich Bader, begins rambling on about an episode of the The Beverly Hillbillies (1962) he watched which focused on Jethro wanting to become an astronaut. Diedrich Bader played Jethro in The Beverly Hillbillies (1993).
The second season, consisting of 13 episodes, was produced but never aired.