- Jeff hallucinating being able to play a musical instrument, then actually doing so is similar to the Star Trek: The Next Generation episode "The Inner Light", in which Captain Picard lives a fantasy life after being rendered unconscious by a probe, during which he plays a flute. When he recovers, he not only still has the flute which was contained in the probe, but finds he has retained the ability to play it.
- Stan hallucinates Hayley as a Na'vi from the film Avatar.
- Roger's album, Roger Goes Down on Lilith Fair refers to the music festival that ran from 1997-1999 and again in 2010, consisting of female solo artists and female-led bands.
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