The BBC Radio 4 program "The Reunion" brings together "An Unearthly Child" director Waris Hussein, Carole Ann Ford (Susan Foreman), William Russell (Ian Chesterton), Peter Purves (Steven Taylor) and Jeremy Young (caveman Kal from "An Unearthly Child") to discuss the earliest years of Doctor Who.
Luckily for us in the US and elsewhere, the BBC allows radio programs to be streamed worldwide, but for a limited time.
http://www.bbc.co.uk/programmes/b01rqgz3
