Episode 1.6, which features the characters going out to a nightclub, replaces the usual names in the credits with hip hop style alternatives. For example, the show's writers and lead stars Jessica Stevenson and Simon Pegg become 'Jazzy Jess' and 'The Fresh Pegg'.
The closing credits of episode 2.6 parody the closing credits of Star Wars Episode V - The Empire Strikes Back (1980), featuring the same music and starfield effect.
The opening sequence of episode 2.7 is a parody of that used on "The Royle Family" (1999), another British comedy series.