What is "sketchorama"

Sketchorama is a radio show, a product of The Comedy Unit, commissioned by the BBC for Radio 4. It features a rotating cast of comedic sketch groups who perform in front of a live audience. The groups are introduced by a host comedian, originally Humphrey Ker, now Thom Tuck. The show is currently in its third season. The British Comedy Guide describes it as "a format for Radio 4 which offers the same popular showcase dynamic as stand-up shows, but purely for comedy sketch groups. Sketchorama aims to bring hidden gems and established live acts to the airwaves offering a truly distinctive and ambitious show."