Participating in the discussion were TV personalities, subject experts and members of the public with relevant experience. For example, a real-life single mother might be invited to discuss a drama themed around single parenthood. Some panelists were deliberately chosen to talk about something outside their usual sphere of expertise. In one edition, the playwright Harold Pinter held his own on the subject of cricket, even when his fellow panelists were a distinguished cricketer and a cricket journalist. "Late Night Line-Up" eventually went well beyond its initial remit of examining BBC2's output and came to incorporate interviews, live music and poetry performances and discussions of other TV channels (which meant ITV to all intents and purposes) and even current affairs issues. However, television criticism was always seen as the main focus, a fact which did not exactly endear the programme to the BBC's senior executives. Indeed, presenter Denis Tuohy quotes the then Head of Light Entertainment, Tom Sloan, as saying: "We now employ two kinds of broadcaster: those who make programmes and those who knock them... Don't ask me why we do it." On 26 May 2008 "Late Night Line-Up" returned for a special one-off edition as part of BBC Parliament's "Permissive Night". Presented by Joan Bakewell, it featured discussion of the themes and programmes shown over the course of the evening and examined the liberalising legislation passed by Parliament in the late 1960s. Archive programmes shown included editions of "Man Alive", "Panorama", "Twenty-Four Hours" and "Late Night Line-Up". As with many shows of its era, much of "Late Night Line-Up" no longer survives. This was not only due to videotapes being wiped, but the programme's usual live broadcast meant they were often not recorded at all. Luckily, some records do survive containing many dates and details of these shows.