Question Time is a topical debate programme, typically broadcast on BBC One at 10:45 pm on Thursdays. It is usually repeated on BBC Two (with British Sign Language) and on BBC Parliament later in the week. Leaders specials are broadcast simultaneously on BBC News. Question Time is also available on BBC iPlayer. Fiona Bruce currently chairs the show having succeeded David Dimbleby as presenter in January 2019.

The programme usually takes annual Westminster recess-style breaks especially at Christmas, Easter and Summer.

Mentorn has produced the programme since 1998.

Question Time was first broadcast on Tuesday 25 September 1979, based on the BBC Radio 4 programme Any Questions? The first panel consisted of Labour MP Michael Foot, author Edna O'Brien, Conservative politician Teddy Taylor, and the Archbishop of Liverpool Derek Worlock.

Question Time panels are typically composed of five public figures, "nearly always [including] a representative from the UK government and the official opposition." The panel also features "representatives from other political parties across the series, taking as [its] guide the level of electoral support at national level which each party enjoys."

High-profile journalists and authors, television and radio broadcasters, and comedians, join the panel, as do business leaders from well-known companies, and leading or expert academics, lawyers, police officers, and clerics.

With the exception of Margaret Thatcher, every British Prime Minister that has held office since the programme began in 1979 has appeared as a regular panelist at some point. Additionally, former Prime Ministers Edward Heath and James Callaghan also participated in panels, with Callaghan's single appearance coming in a special edition marking the resignation of Thatcher on 22 November 1990. Additionally, every leader of the Conservative party after Thatcher and prior to Rishi Sunak, Labour after Harold Wilson and the Liberal/Liberal Democrat parties after Clement Davies with the single exception of Jeremy Thorpe, have appeared as panelists.

Audience members are selected by the 'audience producer' based on age, gender, occupation, ethnicity, disability status, voting intention, voting history, and party membership. The audience members are "requested to come up with two questions, to be considered for the programme." The panel hears the questions for the first time, when the audience members ask them. Applicants are contacted on the Monday, Tuesday, or Wednesday before the programme, although due to a "high volume of requests", the team are unable to call everyone.