'A passionate, bloody arena': 30 years of the Turner prize, from Emin's bed to Grayson's dress – video

The Turner prize, launched 30 years ago, remains a focal point for British art and all its invention, vision and public outrage. Tate director Nicholas Serota and The Guardian's art critic Jonathan Jones consider its legacy, ahead of 2014's exhibition opening this week

• The Turner prize show: voices, videos and erotic tickling sticks

• Censored bits and candy-coloured prints – the Turner prize 2014 in pictures