TV highlights 12/03/2013

Cheltenham Festival | Darwin's Dangerous Idea | Whale Adventure With Nigel Marven | MasterChef | The Crash | Planet Ant: Life Inside The Colony | Shameless | Beyond Time: William Turnbull

Cheltenham Festival

12.35pm, Channel 4

Clare Balding and Nick Luck present the first of four days of premier jumps action, the highlight of which may very well be the battle between Nicky Henderson's undefeated grey Simonsig and Donald McCain's powerful frontrunner Overturn in the Arkle Chase. The other big race of the day, the Champion Hurdle, sees 2011 winner Hurricane Fly marginally favoured as he takes on two former champions in the form of French thoroughbred Binocular and last year's victor Rock On Ruby. Gwilym Mumford

Darwin's Dangerous Idea

7.50pm, PBS America

Charles Darwin posited the theory of natural selection – the notion that, over millennia, Earth's thriving creatures adapt themselves to their environment. This 2002 programme attempts the double: documenting a scientific journey to the Amazon in 2001 to observe the principles in action,

See full article on The Guardian - TV News