Joan Bakewell and Frank Skinner begin their search for Sky Arts' Portrait Artist of the Year in London, where artists are asked to paint stars such as Alison Steadman.

Frank Skinner, Joan Bakewell and the judges head to Glasgow as 21 competitors capture celebrity sitters including actor John Hannah and paralympian Michael Kerr.

Frank Skinner and Joan Bakewell take the competition to Dublin where 21 artists hope to wow the judges with portraits of Pauline McLynn, David Rawle and Lethal Bizzle.

The final heat takes Joan Bakewell and Frank Skinner to Wales where artists paint a topless Gavin Henson, Lucian Freud's muse Sue Tilley and war veteran Simon Weston.

The penultimate stage of the competition takes the four finalists to the French Capital, where they have six hours to paint author and model Sophie Dahl.

The finalists unveil one last portrait before the judges enter tense discussions over the winner. Who will be crowed Portrait Artist of the Year 2013?

Join the winning artist as they plan, paint and unveil their £10,000 commission to capture Booker Prize-winning author Hilary Mantel for the British Library.

Frank Skinner and Joan Bakewell begin their hunt for the Portrait Artist of the Year. Heat one sees artists paint sitters Sol Campbell, John Humphrys and Maisie Williams against the clock.

More artists put their nerves and artistic flair to the test as they paint celebrities Julian Fellowes, Ronni Ancona and Helena Kennedy QC in Edinburgh. With Frank Skinner and Joan Bakewell.

Artists in Scotland paint Gary Kemp, Daniela Nardini and Ashley Jensen. An incredibly close heat means there's a twist in store. With Frank Skinner and Joan Bakewell.

Frank Skinner, Joan Bakewell and the judges move the competition to Wales, where 12 gifted artists get just four hours to paint celebrities Non Evans Ade Adepitan and Greg Davies.

In London, 12 artists attempt to impress the judges by capturing celebrities including Jilly Cooper and Daniel Roche. One contestant uses tapestry to depict Melvyn Bragg.

Artists vie for the final place in the semi-final by painting Sharon Corr, The Divine Comedy's Neil Hannon and actor Colm Meaney in Dublin. With Frank Skinner and Joan Bakewell.

The seven semi-finalists battle for a place in the final by painting a double portrait of Richard Dawkins and Sally Hitchiner. With Joan Bakewell and Frank Skinner.

It's crunch time as the three finalists get four nerve-wracking hours to paint The Hobbit actor Sir Ian McKellen. Who will the judges crown the competition winner?

Join the 2014 winner as they plan, paint and unveil their £10,000 commission to paint actor Alan Cumming for the Scottish National Portrait Gallery.

Frank Skinner and Joan Bakewell launch a new search for a star portrait artist. The contestants will paint celebrity sitters as they hope to win the £10,000 prize.

This week, the contestants paint celebrity sitters Sue Perkins, Richard E Grant and Nina Sosanya. But who will the judges send through to the next round?

James Norton, Raleigh Ritchie and Lesley Manville are the sitters as the artists compete for the £10,000 commission. Frank Skinner and Joan Bakewell host.

Actor Trevor Eve, Fortitude star Parminder Nagra and author Ben Okri are the celebrity sitters this week as a new group of artists attempt to impress the judges.

Musician Rick Wakeman, Hairy Biker Dave Myers and singer Katie Kissoon are the sitters awaiting a new group of portrait artists as the competition continues.

Broadcaster Adrian Chiles, actress Sian Phillips and actor Phil Davis sit for a group of portrait artists this week. Frank Skinner and Joan Bakewell host.

The six heat winners arrive for the semi-final where celebrity sitter Imelda Staunton awaits. The pressure is on as only three artists will be chosen for the final.

It's the final and the three remaining artists hope to impress the judges as they paint celebrity sitter Tom Courtenay and win a career-changing £10,000 commission.

This special film joins the Sky Arts Portrait Artist of the Year 2017 as they collect a £10,000 commission to paint broadcaster Graham Norton.

Frank Skinner and Joan Bakewell search for a new star portrait artist. The celebrity sitters opening the series are David Tennant, Michaela Coel and James Morrison.

Comedian Noel Fielding, TV presenter Reggie Yates and model Daphne Selfe are the celebrity sitters this week as a group of artists attempts to impress the judges.

Investigative journalist Ross Kemp, actor Freddie Fox and Broadchurch star Vicky McClure strike a pose for a new group of portrait artists.

This week's famous sitters are model Rachel Hunter, actress Stefanie Martini and Game of Thrones star Conleth Hill as the portrait painting competition continues.

Downton Abbey actress Elizabeth McGovern, Harry Potter film star Fiona Shaw and Paralympic gold medalist Kadeena Cox sit for a new group of portrait artists.

A new group of portrait artists attempt to capture the likeness of actors Kenneth Cranham, Claire Skinner and Sope Dirisu on canvas. Frank Skinner and Joan Bakewell host.

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In the last of the heats, actress Meera Syal, star of stage and screen Sir Derek Jacobi and broadcaster Kirsty Wark sit for a new group of portrait artists.

It's the semi-final and the remaining artists attempt to impress the judges with their portraits of this week's celebrity sitters - model Lily Cole and actor Simon Callow.

It's the final and the portrait artists are challenged to paint multi award-winning singer-songwriter Emeli Sande before the judges pick a series winner.

This special film follows the winner of Portrait Artist of the Year 2018 as they paint a commissioned portrait of Sex and the City actress Kim Cattrall.