About the programme

David Dimbleby has hosted the programme since the mid 1990s

In the years since it was first broadcast on 25 September 1979, Question Time has become something of a national institution, offering British voters a unique opportunity to quiz top decision-makers on the events of the day.

David Dimbleby is the current host of the programme, building on the authority and approachability of his predecessors, Sir Robin Day and Peter Sissons.

Each year, some 30,000 members of the public apply to join the debate by being in the studio audience.

The panels are drawn from significant figures in politics as well as industry, the media and entertainment.

But at the heart of Question Time is the audience - both in the studio and at home.

The programme is recorded in front of a live audience from around 2030 GMT each Thursday. The reasons for not broadcasting live at 2235 GMT are to limit inconvenience to spectators and guests - enabling them to appear on the programme at locations across the country and still return to their homes at a reasonable hour - and therefore maximise the number of leading politicians and political commentators willing to take part.

The recording is done in a single take, precisely as if it were broadcast live. Some exchanges occasionally have to be edited out for legal or taste/decency reasons.

Any text messages sent in when the programme goes out at 2235 GMT are live responses to the guests' remarks as they are broadcast and the subsequent text exchanges on Ceefax and red button are also live. Guests are not warned in advance about questions to be asked.

The programme is also available for everyone on the internet in the UK. You can watch each programme by clicking on the iPlayer link on the top right-hand side of the page.

You can join the debate here on the website and find out who's saying what and where with the Question Time map:

Question Time: Your Say

For the television audience, live subtitles are available on Ceefax page 155.

JOIN THE QUESTION TIME DEBATE

Text your comments to 83981

Read comments on Ceefax and red button page 155

Send and read comments on the website

You can take part in the debate during the programme by sending us a text message. The number is 83981.

A selection of viewers' comments appear during the programme on Ceefax and red button page 155, which allows you to continue watching the programme while messages appear across the foot of your TV screen.

Also you can find out who is on the panel as well as the topic of the question under debate.

Each week, the programme receives up to 5,000 viewer comments.

A team of journalists at TV Centre sorts and selects messages as they arrive and publishes as many of them as possible.

Because of the time delay between sending a text message and it arriving on the BBC's computers, the programme is usually under way for a few minutes before the first text comments appear on screen.

Please note, the BBC reserves the right to edit your messages.