Ricky Gervais jokes with Peter Purves about long-standing rumours that his Blue Peter (1958) co-presenter Valerie Singleton was a lesbian, causing Peter to look slightly uncomfortable. During 2008 Singleton would not only scotch the rumours, but confess that she'd slept with Purves, something Purves himself would admit to in 2009.
The theme tune for the episode is provided by a Nick Ferris of London.