He initially rose to fame in the early 1960s for his novelty song "Tie Me Kangaroo Down, Sport", featuring the distinctive sound of the "wobble board" - a large piece of hardboard which was played by "wobbling" it back and forth.
He also made several television appearances in which he would paint pictures on large boards in an apparently slapdash manner, but with detailed results.
He is probably best known to younger Britons as the host of the reality television programme Animal Hospital, which chronicles the real-life activity of a British animal hospital.
needs a lot more. basically he's one of those people who's been on British tv since the year dot and still as popular as ever. also a genuinely nice guy by all accounts.