BRIGHT (BRITISH) IDEAS

Britain’s Greatest Invention, 8.30pm, BBC2

THE steam engine or the fridge? Television or concrete? The jet engine? Antibiotics? The mobile phone? What do you consider to be our greatest invention? Here, seven celebrities (Trevor McDonald, Angela Rippon, Giles Coren, Nick Knowles, Len Goodman, Angela Scanlon, pictured, and David Harewood) put forward a case for each, and the nation is invited to vote — so get your thinking cap on.