As Steveinthecity has touched upon, Question Time is a BBC current affairs panel show that has been going for over 30 years. It has an audience made up of local people (the venue of the show is different each week), and the panel usually features cabinet ministers, shadow cabinet ministers, the odd industry leader or pressure group director, leading political journalists etc. The audience ask the questions, although everything is heavily stage managed and everyone on the panel will have thoroughly rehearsed what they will say on the show.
It's more or less the same each week - the ministers trot out the same old party line homilies and disingenuous claptrap about the need to change / help those in need / fanfare what their party has done, and the journos and pressure group folks get all indignant and supercilious and play to the gallery. The BS does get cranked up a notch especially when it comes to foreign policy (usually the Middle East).
Occasionally a wildcard non-politico personage from the world of showbiz or pop culture is thrown in there to liven things up a bit. Lydon (aka Johnny Rotten of the Sex Pistols and Public Image) got the nod this week. Good to see such people on the show, as they don't have to watch what they say, even if their understanding of the issues being debated is err, somewhat limited.