Did you know one in four UK households owns Mamma Mia! on DVD?

So what’s behind the appeal of the film, and the musical, which has taken $1.5billion at the
box office?

We hear from those behind its success, including screen and script writer Catherine Johnson as well as celebrity fans, musicologists, critics and key cast members.

Mamma Mia: The Story of the World' Favourite Musical. Abba pictured

The Swedish supergroup Abba

Also on is Britain’s Favourite Abba Songs (5.50pm), there’s another chance to see the fascinating documentary about the female half of the band in Abba: The Secret Life of Agnetha & Anni-Frid (7pm), and catch a live performance of Abba at Wembley in 1979 in Live in Concert (10.25pm).

TV Times rating: ****