Second of as yet three episodes in which a character overtly mentions the name of the show.
The first part of the post-credits scene in which Dr. Venture gets a prosthetic hand mirrors exactly the scene in which Luke Skywalker receives a prosthetic hand in Star Wars: Episode V - The Empire Strikes Back (1980).
Even though Triana's friend Kim is meeting Hank and Dean for the first time, and Triana even describes Hank as being like Fred from Scooby-Doo, Kim already knew the brothers and even referred to Hank as "the Scooby-Doo kid " in the earlier episode "The Venture Bros." (2003) {Assassinanny 911 (#2.3)}