Spike Milligan, the last surviving creator of the groundbreaking radio comedy series, The Goon Show, died Wednesday at the age of 83.  Milligan and Peter Sellers changed the face of British comedy forever with The Goon Show, which featured a sublime combination of sly wit and surreal nonsense.  Milligan had an ability to improvise wildly and free associate between various comic personas, matched in our era only by Jonathan Winters and Robin Williams.  Monty Python's Flying Circus, the novels of Douglas Adams, the Firesign Theater -- they all seem inconceivable without the example of Spike Milligan.