Grayson Perry and his wife Philippa are joined by actress and comedian Katy Wix, for an edition themed on holidays. Grayson talks to some of the talented amateur artists around the country who've submitted their art, and chooses his favourites for a major national exhibition. Plus, artist Denzil Forrester reveals how he captures the rhythms of London's reggae, dub and dancehall clubs in his vibrant paintings.