The show is recorded in front of a live audience at Pinewood Studios, combined with on-location scenes. Faced with the prospect of losing the flat, not to mention his well-meaning but utterly useless cleaner Barbara (Miranda Hart), Lee rents the spare room to Tim's ambitious younger sister Lucy (Sally Breton). Although his frequent laziness annoys her, Lucy sometimes appears to enjoy Lee's presence in the flat, largely because of his company and his willingness to help her out of an awkward situation. With Tim's absence, Lee often finds himself listening to suggestions from Daisy on how to impress Lucy, which include acting as a test subject for her psychology course.

BAFTA winning comedians Lee Mack and Tim Vine star alongside Sally Bretton, and Katy Wix in the highly anticipated fourth series of the hit Royal Television Society and Rose D'or award-winning BBC sitcom Not Going Out. The fourteenth series is yet to be commissioned by the BBC, although Lee Mack has stated that since the 2023 Christmas Special will be the 100th episode, he may bring the show to an end. Not Going Out is a British television sitcom that has aired since 2006, currently starring Lee Mack and Sally Bretton with Geoffrey Whitehead, Deborah Grant, Hugh Dennis and Abigail Cruttenden. Packed full of the jokes, jibes and general misunderstandings of Lee and his friends, this is a comedy definitely worth staying in for. Not only are friends Tim (Tim Vine) and Daisy (Katy Wix, Torchwood) - Tim's ditzy girlfriend - on hand to cause problems but this year Lee also has to cope with stolen drugs, missing OAPs, long-lost daughters and a coma.The will-they-won't-they tension reaches unseen new highs in an epic series finale that sees Lucy and Lee in previously uncharted emotional water.

In the last episode, Tim and Lee are convinced Guy is a gangster and has been smuggling diamonds, but it turns out that he was having a diamond engagement ring made for Lucy planning to propose on a romantic holiday. The thirteenth series began airing weekly from 23 June 2023, with all episodes available on iPlayer hours before the first episode aired.This is the man who walked out of the family home when Lee was four, never paid his maintenance and ate Lee’s goldfish.

Meanwhile, Lucy considers marrying an Eastern European refugee in a marriage of convenience, until he marries Barbara instead. Lee Mack announced on Alan Carr: Chatty Man that there would be a Christmas Special in 2015 and possibly another series in 2016.All episodes up to the end of Series 4 feature different video post-production to the broadcast versions, giving them a US-style 'filmlook' effect, however this was dropped from the Series 5 DVD onwards. Also features Hugh Dennis, Abigail Cruttenden, Geoffrey Whitehead, Deborah Grant, Bobby Ball and more.