Through the Keyhole is a British comedy panel game show created by the TV producer Kevin Sim and originally presented by Sir David Frost in the studio and Loyd Grossman on location.

[4] The idea was created by Kevin Sim as a chance to look around some of the most influential homes with Grossman at the helm as the tour presenter.

In Spring 1986[7][8] Frost transferred the concept to Yorkshire Television who picked up format, to produce a full half-hour programme for ITV, where a celebrity panel tries to guess whose house is being looked at From 1987.

It ran in primetime on Friday nights for eight years on ITV and was rarely out of the top ten entertainment programmes on TV.

[citation needed] In 2013, the programme returned on its original broadcast channel ITV with Leigh Francis (in character as Keith Lemon) taking up the dual roles of studio presenter and house detective.

The first episode of the revived series aired on the same day that former host Sir David Frost died, although the news did not break until the following morning.

[11] Before his death in August 2013, Frost gave his backing to ITV's remake, saying: "I am delighted that the Keyhole format is now entering its fourth decade on TV.

The panel (Maik de Boer, Patty Brard and Ruben van der Meer) have to guess whose house she is in.