Marking the 90th anniversary of the birth of a legend of entertainment, actor Robin Sebastian exposes his inner Kenneth Williams to introduce a collection of the Carry On star's radio highlights.

Including new contributions from biographer Christopher Stevens and broadcaster Russell Davies the programmes explore Williams' popular characters such as Ramblin' Syd Rumpo and look back with laughter at some classic episodes of radio comedy. We also find Kenneth in a darker mood in a radio adaption of a Gogol story.

On The Trail Of Ramblin' Syd: A new programme in which Robin Sebastian traces the origins and impact of the West Country folk singer.

Hancock's Half Hour (The Television Set episode): Galton & Simpson comedy. Living in the only house in Railway Cuttings without a telly, the Lad takes action.

Round The Horne: A classic episode from the popular 1960s radio series starring Kenneth Williams.

Just A Minute: A unique episode with Kenneth Williams as chairman and Nicholas Parsons as panellist.

Diary Of A Mad Man: A rare and rather wonderful piece of Kenneth Williams archive with his brilliant interpretation of Nikolai Gogol's farcical short story.

The Very Best Of Ramblin' Syd Rumpo: A special concert recorded in 1970 in front of a live audience at Abbey Road Studios.