The Glyndebourne season took place in the summer, so he had plenty of time to do other things the rest of the year. He sang in operas in the BBC studios and often appeared in pantomimes. Then he started to take part in a radio programme called “My Music”. Together with Frank Muir, Dennis Norden, David Franklin and Steve Race he made this programme extremely popular. It was a kind of lighthearted quiz programme with lots of stories and laughter. Wallace was particularly known for singing a song called “The Hippopotamus” by Flanders and Swann.