Mission: JOY with Archbishop Desmond Tutu & the Dalai Lama: Documentary about a 2015 meeting between Desmond Tutu and the Dalai Lama. Mission: JOY with Archbishop Desmond Tutu & the Dalai Lama airs on BBC Four HD at 11:50 PM, Tuesday 21 May. Documentary about a 2015 meeting between Desmond Tutu and the Dalai Lama