Explore the social lives of some of the smartest animals on the planet. Watch Wednesday, April 23, 2014 at 9pm.

Find out which traits our primate progenitors bequeathed to us. Watch Wednesday, April 23, 2014 at 10pm.

Pink Floyd tribute band celebrates Pink Floyd's classic album 'The Dark Side Of The Moon.' Watch Thursday, April 24, 2014 at 8pm.

Choreographer Matthew Bourne gives the classic fairy tale ballet a Gothic spin. Watch Friday, April 25, 2014 at 9pm.

Martha prepares four different kinds of bar cookies guaranteed to be a hit. Watch Saturday, April 26, 2014 at 2:30pm.

Jazz and pop cross on ACL with Norah Jones and Kat Edmonson. Watch Saturday, April 26, 2014 at 11pm.