Tess Daly and Claudia Winkleman host the launch of the 20th series, joined by judges Shirley Ballas, Anton Du Beke, Craig Revel Horwood and Motsi Mabuse as they welcome 15 new celebrities to the Strictly ballroom. Featuring a guest appearance by John Legend, and last year's champions Rose Ayling-Ellis and Giovanni Pernice reprising their winning routine

Tess Daly and Claudia Winkleman host the first live show of the series. Judges Craig Revel Horwood, Motsi Mabuse, Anton Du Beke and Shirley Ballas assess the routines of the 15 couples, with the scores they award tonight being carried over to next week when viewers will have their chance to vote. Plus, a special group routine from the professional dancers

Our 15 new couples return to the Strictly ballroom, performing live and facing a public vote for the first time this series.

Two couples face the first dance-off of the series. Entertaining us all in the ballroom is the legendary Robbie Williams.

It's time to roll out the red carpet as Strictly Come Dancing takes you to the movies. Our remaining couples' routines take their inspiration from the silver screen.

Two couples face a Movie Week dance-off. With a guest performance by Adam Lambert.

It's week four of the competition, and our remaining couples have well and truly broken in their dancing shoes. Tonight, they dance live for your votes at home, all under the watchful eye of our four judges. Who will impress enough to win a place in next week's BBC Centenary Special?

Two couples face a dance-off to retain their place in the competition. George Ezra performs in the Strictly Ballroom.

To celebrate 100 years of the BBC, the couples perform to either an iconic BBC theme tune or dance in tribute to one of the BBC's most loved services.

The BBC 100 celebrations continue as our professionals dance a group number in tribute to the BBC's natural history programming. Becky Hill also performs in the ballroom.

It's the Strictly Come Dancing Halloween special! Our remaining couples perform fierce and fun routines for all the family to enjoy. Our leaderboard has been hauntingly different every week, and no-one is safe in the competition. Who will make the top spot tonight?

Another two couples face a dance-off, and there's a music performance by the outstanding Rina Sawayama. Who will the judges trick and treat this Halloween?

We are halfway through the series, and the competition is as unpredictable as ever. The couples are back with their brand new routines, hoping to impress the judges and the viewers at home. Our return to Blackpool is on the horizon, so the stakes are high.

Two more couples face a dance-off, and there is a music performance by Luke Evans.

The couples fight to secure a place in next week's Blackpool special.

Two more couples face a dance-off, our professionals mark Remembrance Sunday with a beautiful group number, and the guest music performance is by Sheku and Zak.

After a two-year absence, Strictly Come Dancing returns to the iconic Blackpool Tower Ballroom.

Two more couples face a dance-off, and Sam Ryder performs in the ballroom. At this stage of the competition, no-one wants to go home. Who will the judges save for another week?

Strictly Come Dancing is approaching the last leg of the competition, and our couples have to do more than ever to secure their places in next week's Musicals Special quarter-final. For the judges, expectations are high, so it will be another weekend of fantastic ballroom dancing.

Two more couples face a dance-off, and special guests Tom Grennan and Joel Corry perform in the ballroom.

The remaining couples take to the ballroom floor with more incredible routines inspired by the world of musical theatre. Who will secure their place in next week's semi-final?

The Musicals Week results show opens with a Guys and Dolls routine. Two couples face a dance-off to secure a place in the semi-final, and there's a guest appearance by the stars of The Cher Show.

The remaining couples compete in the semi-final, performing two routines each to try to claim a place in next week's final.

Two couples face the last dance-off of the series, trying to secure a place in next week's final. With a guest performance by Lewis Capaldi.

Tess Daly and Claudia Winkleman introduce the climax of this year's series.