10/10 Sir David Attenborough goes on an eye-opening journey into the fabulous lives of frogs.
2/7 Exploring the lost world of coal mining and the lives of those who worked in the industry.
The hidden world of algorithms, which run everything from search engines to satnavs.
2/4 A consultant performs innovative, life-saving surgery on a man to remove a brain tumour.
4/4 James May pieces together the 195 parts of the Dansette Bermuda portable record player.
6/6 Paul Murton learns how Scotland was first promoted as a winter holiday destination.
4/9 How migration affects modern-day Poland.
13/15 Michael Portillo gets up to speed with modern archaeology in County Meath.
13/20 A man follows a woman home, then robs her in her own house.
13/20 A woman thinks her elderly aunt is being targeted in her own home and sets up a stakeout.