Jonathan Davies, Rowland Phillips and Nigel Owens and Alex Jones are enjoying the Six Nations Championship during a seven-part series.
In the programme, Jonathan, Rowland and Nigel go head-to-head in a series of physical challenges to see who is the fittest.
There are weekly video updates of behind the scene footage on Facebook. Join the Jonathan group to see the extra material.
The series also features chats with special studio guests and they also take part in 'Ar y Pyst', the popular rugby conversion challenge.
© 2010 S4C
O Gymru / Made in Wales