If you want to laugh then see this show. This is sketch comedy at its finest, as Jonathan Miller, Alan Bennett, Dudley Moore and Peter Cook riff on pretty much everything under the sun from religion, Philosophy, music, the end of the world and being a miner. Its a wild mix of nothing is sacred humor with a very clever edge.
If you want to trace the history of British comedy one would start with the music halls move on to the Goons stopping at this show before moving on to people like the Goodies, Monty Python and Eddie Izzard. These are the guys and this is the show that began, in part the draining of the colleges and setting them to work for places like the BBC. Python took the anarchic sketch comedy found here and welded the insanity of Spike Milligan and the Goons. If you need more proof consider that a good number of bits from this show ended up in the Secret Policemen's Balls that were staged by the members of Python for Amnesty International. They used the material because its funny.
Historical importance aside this is a very funny show. Certainly there are bits that have dated since it was first performed but on the whole the show remains relevant, and above all funny. If you like to laugh see this show.