TV Highlights Friday
Sky 1, 9.00pm
Will Schuester (Matthew Morrison, right) decides that New Directions need to make their act edgier for the Nationals, and recruits two new coaches to help. And in New York, Rachel tries to convince Kurt that they both need to get tattoos. With Becca Tobin, Jane Lynch and Lea Michele.The Graham Norton Show
Colin Farrell (right) joins Graham tonight to discuss his role in 'Saving Mr. Banks', and other guests include Jeremy Clarkson, Jo Brand and Sharon Osbourne. Plus, there'll be music from Arcade Fire.Blues America
This two-part documentary charts the history of blues, which started out in the deep south in the early 1900s as a new form of pop music based on black spiritual traditions. With contributions from Keith Richards (right) and Taj Mahal.8 Out of 10 Cats
Channel 4, 9.00pm
Jimmy Carr (right) hosts the last episode of the current series of the panel show, and captains Sean Lock and Jon Richardson are joined by Jack Dee, Claudia Winkleman and Josh Widdicombe to answer glib questions on recent events.