The song that is playing on a stereo that Jen turns down and then back up at very end of the episode is Game of Pricks by the band Guided By Voices.
Keep the conversation about things that would interest everybody, you know; nothing about memory or RAM.
Moss: Memory *is* RAM! Ha! Oh Dear!
Jen strongly objects to the idea of co-workers Roy, Moss, and Richmond coming into her home in a casual setting. However, in The IT Crowd: Aunt Irma Visits (2006), Roy and Moss come to her apartment for a "girls night" and Jen later wakes up at home to find Moss in her bathroom.