The guests are Rebecca Adlington, Marc Warren, Martyn Williams and Jonathan Edwards. (R)
BBC One Wales, Wales HD only
The guests are Alistair Brownlee, Iain Dowie, Louise Hazel and Greig Laidlaw.
BBC One except Northern Ireland, Northern Ireland HD, Scotland, Scotland HD, Wales, Wales HD
BBC One Scotland, Scotland HD only
BBC One Northern Ireland, Northern Ireland HD only