Sesame Street Count on More or Less

29 August 2012 Last updated at 07:48 ET Help

Jerry Nelson, the puppeteer and voice of Sesame Street's Count von Count, has died aged 78. For more than 40 years, Nelson worked on numerous projects featuring Jim Henson's Muppets.

In 2009, the Count spoke to Tim Harford from Radio 4's More or Less about his love of numbers.

First broadcast 11 December 2009.

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