Dick and Dom bravely investigate the science behind bugs and germs.
BBC Radio 4 Extra
Mel celebrates Patrick Duffy's birthday, and Dick and Dom are back at school.
Dick and Dom with the science behind the everyday in How Dangerous Is Your School?
Mel Giedroyc explores Scotland's islands with Katie Morag creator Mairi Hedderwick. (R)
Mel treks through the forest in search of stag's antlers and chats to Morris Gleitzman. (R)
Mel Giedroyc encounters some piano-playing puffins and a town where the goat is king. (R)
Mel Giedroyc revels in the rush of the rollercoaster ride and a spot of clog dancing. (R)
Mel Giedroyc follows the trail of some slimy slugs and snails in the nature feature. (R)