Singing, Source Code and the Sochi Winter Olympics: The Best of Tonight’s TV

From fit families to sports stars, there’s plenty to keep you entertained tonight! Ireland’s Fittest Family – RTÉ One (6.30pm) Tonight, the second set of the remaining six families battle it out on this week’s show with the help of their mentors. Winter Olympics – BBC Two (7.00pm) Clare Balding presents the highlights from the opening day of the Games which are being held in Sochi, Russia. The Voice UK – BBC One (7.10pm) The judges are back and hoping to add to their respective teams. Presented by Emma Willis and Marvin Humes. The Jonathan Ross Show – UTV (9.55pm) Kiefer Sutherland, Emily Mortimer, Chris O’Dowd and Kevin Bridges are on tonight’s show. John Legend will also be performing. Source Code – Channel 4 (10.00pm) In this sci-fi thriller, a soldier wakes up in the body of another man with a mission to find the person who bombed a train in Chicago. Starring Jake Gyllenhaal and Michelle Monaghan.