主持人：Raphael Blet

Every weekday afternoon after the 3.30 news update, Radio 3's Rafael Blet will be telling us - through words and a little music - all about the things in life that you didn't know you needed to know. On our short week-daily journey of discovery we'll find out about trends, innovation, history, the future, and many other things besides, in 'That's an Idea!'.

Join Raph for a five minute brain workout each weekday afternoon, and also every Sunday evening at 6:45, when he rounds up his top three of the week.