Including at 6.15 Pause for Thought with Michaela Youngson.

And at 9.15 Pause for Thought with Indarjit Singh.

With The Organist Entertains.

Norman Wisdom pays tribute to Stan Laurel (born Arthur Stanley Jefferson in Lancashire) and Oliver Hardy (born Norvell Hardy in Harlem, Georgia), whose on-screen double act from the mid-1920s onwards earned them the title of arguably the greatest of all Hollywood comedy duos. An acquired taste for some, they combined immaculately executed slapstick with relentlessly dopey dialogue to unusually poignant effect. Among those discussing their legacy are Jean Darling (who acted in their 1934 feature Babes in Toyland), Ken Dodd, Alex Norton, writer Neil Brand and, in an archive interview, Peter Cushing.
(The drama Stan is on BBC4 tomorrow at 10pm)

2/4. Petula Clark profiles legendary French chanteuse Edith Piaf , who died in 1963, aged 47, following a career marked by dramatic and soaring performances, among them La Vie en Rose, Milord and Non, Je Ne Regrette Rien. This instalment looks at her stormy love life and her first million seller, L'Accordéoniste.

Steve Harley with hits and LP cuts.

With Graham Coxon live in the studio.

With indie trio We Are Scientists. Including at 1.30am Pause for Thought with Andrew Graystone.

3.30 as 1.30