From The Doha Debates website; http://www.thedohadebates.com/page.asp?p=3285

Watch the latest Doha Debate on BBC World News on June 6th and 7th at the following times:

Doha times:
Saturday June 6th: 10:10, 18:10, 22:10
Sunday June 7th: 03:10, 10:10, 18:10, 22:10

GMT:
Saturday June 6th: 07:10, 15:10, 19:10
Sunday June 7th: 00:10, 07:10, 15:10, 19:10