3/6 Lucy has found an ethical way of eating meat, thanks to Mark Zuckerberg.
2/6 The impressions show that tugs on the beard of news.
2/4 BBC boffins explore the possibilities of combining radio with 3D printing.
2/6 Lorraine Ashbourne is Carol, in Jenny Eclair's story about a lifesaving friendship.
3/4 Thom Tuck presents sketch groups Four Screws Loose, The Jest and Birthday Girls.
4/4 David Mitchell, Josh Widdicombe, Roisin Conaty and Joe Lycett try not to be funny.