William Shatner literally begged writer Joss Whedon for a role on his show Buffy the Vampire Slayer. Whedon has said that if the show had continued to Season Eight, he was strongly considering casting Shatner as a vampire lounge singer.

At some point during every episode of Joss Whedon's short-lived show Firefly, a snippet of gay porn can be seen on a background monitor. It was never a problem as the longest incident only lasted half a second.