Conversation so far:
What kind of work did David Attenborough do before working at BBC?
David Attenborough took a position editing children's science textbooks for a publishing company.
Did David Attenborough like this type of work?
David Attenborough soon became disillusioned with the work and in 1950 applied for a job as a radio talk producer with the BBC
What did David Attenborough do at the BBC?
David Attenborough became a producer for the Talks department
Did David Attenborough like being filmed?
Initially discouraged from appearing on camera because Mary Adams thought David Attenborough's teeth were too big.

Question: What kind of work did he first do at BBC?
Self-contained rewrite: What kind of work did David Attenborough first do at BBC?