To mark the centenary of the Greenwich Time Signal on the BBC, Paddy O'Connell asks the unaskable - Do We Still Need the Pips?

First broadcast at 9.30pm on Feb the 5th 1924, the six pips of the Greenwich Time Signal have become synonymous with Radio 4. But today digital broadcasting has rendered this time signal delayed and inaccurate. Plus their immovable presence can cause accidents on-air, and no-one wants to crash the Pips. So after 100 years, should Radio 4 just get rid of them? What is the point of a time signal in 2024 anyway?

Paddy O'Connell looks back across a century of organised beeps, and meets the people who listen to, broadcast and sometimes crash in to the Pips to find out what we really think about these six little characters. With interviews including Mishal Husain, Robin Ince & Brian Cox, Jane Steel, Richard Hoptroff, Jon Holmes and David Rooney.

Produced by Luke Doran. Original music by Ed Carter.