In a documentary on Shaun of the Dead, Simon Pegg says that this episode was the inspiration for the movie.
The game Tim plays is Resident Evil 2.
Daisy (Jessica Hynes) refers to Mike (Nick Frost) as Tim's (Simon Pegg) boyfriend, to which he indignantly says "He's not my boyfriend!" before calling Mike "babe" on the phone. A similar exchange happens in Shaun of the Dead (2004).