The title is a parody of the title of the film Bill & Ted's Excellent Adventure.
Circuit Shack is a portmanteau for electronics stores Circuit City and Radio Shack.
Stu is a 35-year-old virgin, that works at an electronic store, which is similar to Andy in the film The 40 Year-Old Virgin.
Stu and Stewie attempt to learn about sex by reading The Joy of Sex. The partners shown in the photographs illustrating this work were notoriously hirsute as the male wore a heavy dark beard, and she full pubic hair, hence Stewie's comment about the razor not having been invented until the eighties.
A reference to Ferris Bueller's Day Off climaxes in a sequence where Stewie Griffin races through his suburban neighborhood in a parody of Ferris’ dash to get home before his parents at the end of the film, using the same music and featuring a brief scene where he introduces himself to two sunbathing women. There is also a scene where Peter almost sees Stewie out of the corner of his eye as Stewie chases after the family car; there is an identical scene in Ferris Bueller.
Stu tells Stewie that it’s against the rules to tell him about the future. Stu proceeds to time travel, but Stewie hops on and says, “Surprise!” This is a reference to Star Trek IV, when Gillian does the same to Admiral Kirk when he transports onto the hijacked Bird of Prey which then travels through time.
The opening sequence of the seven-segment display “FG” is a reference to the 24 sequence. The voiceover, “Previously, on Family Guy,” is voiced by Kiefer Sutherland who plays Jack Bauer, the protagonist on 24.
Stewie tries to get Stu to play 'The Glad Game' which is a reference to a game made up by the title character of the novel Pollyanna. The things Stewie states make him glad include: a pinwheel, a big wedge of cake from the fair, a doo-dad for his hat, and the first cut into a fresh piece of construction paper.