Touch
8pm, Sky1

After eight long days as Jack Bauer, Kiefer Sutherland returns to TV. Touch is written by Tim Kring, whose Heroes jumped off the pier marked "Danger: very high concept" pretty quickly. It's about a single dad (Kiefer) whose son hasn't spoken since birth and keeps bunking off school to write long strings of numbers in a notebook. But hang on – is he actually predicting some kind of giant road map to an interconnected series of future events happening to random people all around the world? Yes, and luckily, Kiefer's good at running around to help it all add up. Richard Vine

Horizon: The Truth About Fat
9pm, BBC2

Gabriel Weston likes sticking knives into people. She's a skin surgeon, often dealing in tumour removals, but is also encountering a growing number of obese patients "bringing surgical operating lists to a standstill". In a world where a quarter of the adult population is deemed clinically obese, might there be deeper reasons for the problem than just lack of willpower? In this fascinating programme, Weston learns that a couple of recently discovered hormones could actually be controlling our appetites. Ali Catterall

Hit The Road Jack
10pm, Channel 4

Jack Whitehall's stock has risen exponentially recently, thanks largely to his impressively judged turn as JP in Fresh Meat. If only Hit The Road Jack were cut from such adventurous cloth. A tour with a difference, it begins with Whitehall's basically harmless but low-rent stand-up, before he is "embedded" in the local community with slightly more amusing consequences (he keeps a creditably straight face while posing as an Australian rugby guru in Wales). He's a vaguely charming Jack of all trades but ultimately doesn't excel at any, save the acting. John Robinson

Mark Lawson Talks To Terry Wogan
10pm, BBC4

It's probably time for a reappraisal of Sir Terry Wogan. Easily dismissed as a middle-brow lightweight, his 28 years at BBC radio, as Mark Lawson reminds us, "set new standards of fluency, verbal inventiveness and … interaction with the audience". He was also a pioneer of TV irony (albeit in a gentle way) with his Blankety Blank gameshow and Eurovision commentaries. There's plenty to cover here, then, from Wogan's Catholic upbringing to his heyday hosting a thrice-weekly, primetime TV chatshow. His secret of success? "I've had a blessed life and been lucky." Martin Skegg

Napoleon Dynamite
10.30pm, E4

An animated spin-off from the amusing 2004 movie, this series picks up where we left off with the gawky titular Idaho teenager and his raft of highly specialised "skills". In this first episode, a piece of fried chicken thrown by his brother Kip causes Napoleon's forehead to come out in a virulent outbreak of spots. Napoleon duly tries an acne cream with a number of terrifying side-effects – not least uncontrollable fits of anger. Before long, he's the star attraction at his local underground fight club. JR

Rita Simons: My Daughter, Deafness And Me
10.40pm, BBC1

Rita Simons (EastEnders' Roxy) shares the story of how deafness has affected her family as part of BBC1's disability season. Her daughter Maiya was diagnosed with hearing loss at six months; five years on, her parents face tough decisions about how she will live her life. Rita's determination to make sure Maiya fits in with her hearing family is as strong as the worry that she could one day lose her hearing completely. Hannah Verdier