TV highlights 30/01/14

Dan Snow's History of the Winter Olympics | The Truth About Your Dog's Food | Easter Island: Mysteries of a Lost World | The Good Wife | Suits
A History of the Winter Olympics
Dan Snow's History of the Winter Olympics, BBC2. Photograph: Giles Harvey/BBC

Dan Snow's History of the Winter Olympics
9pm, BBC2

While traditionally the domain of those from chillier climes, it was the Edwardian-era Britons, taken with the notion of being flung down continental mountains, who helped to forge the Winter Olympiad as we know it. The appropriately monikered Dan Snow sifts through the 90 years of Winter Olympic history, including the story of the Winter Olympics in Nazi Germany, Soviet domination of the games throughout the cold war and Eddie "The Eagle" Edwards facing off against one Johnny Carson. Mark Jones

The Truth About Your Dog's Food
9pm, Channel 5

According to this enlightening programme, there are eight million dogs in the UK, and every year we spend £2bn feeding them. But with 80% of the market dominated by just five companies, there is less diversity in the cans of food our four-legged companions wolf down than we think. This programme explores some of the alternatives: the home-feeders who cook seafood and vegetable specials, as well the veggie and vegan crowd. Bim Adewunmi

Easter Island: Mysteries of a Lost World
9pm, BBC4

For years now, Easter Island has been held up as an example of what happens when a society overexploits its environment, an "ecocide" associated with building monolithic figures known as moai. Rubbish, says archaeologist Dr Jago Cooper. In an overlong, but otherwise admirable documentary, Cooper instead offers a story that explores how the local Rapa Nui people understood how to husband their resources. Jonathan Wright

The Good Wife
9pm, More4

In the fifth season of the fast-moving legal and political drama, Alicia (Julianna Margulies) and Cary prepare to break away from the firm, but how are they going to tell Will and Diane? Meanwhile, everyone pulls together to save a condemned man who is about to be state-poisoned despite an unsound conviction. And Melissa George casts off her Hunted beanie and joins the governor's office as Marilyn, the new thorn in Eli's side. Cuts and tracks with all the kinetic urgency of ER, but no one's hair moves. Good, glossy fun. Julia Raeside

9pm, Dave

Season three of the legal drama gets off to an action-packed start, with the Mad Men-esque merger with a British firm causing tensions. Ivy League faker Mike (Patrick J Adams) is persona non grata at Pearson Darby; his relationship with long-time mentor Harvey (Gabriel Macht) is in ruins and things will never be the same again between him and Rachel following their workplace tryst. Meanwhile, Harvey and Jessica are caught in a power struggle that could see one of them lose their grip on the firm. Hannah J Davies