PICK OF THE DAY

SNOW ANIMALS

7PM, BBC1 ★★★★

Humans think they have it hard when the shops shut at Christmas, but spare a thought for the animals roaming subzero lands with nary a Tesco in sight. How do they cope? For them, like us, preparation is key. As Liz Bonnin reveals, creatures such as the Siberian chipmunk squirrel away autumn’s bounty to build up a winter larder. To stretch the shopping analogy further, the canny chipmunks have shopping bag-like expandable cheeks that can be used to gather 165 acorns a day. Bonnin also looks at the tactics of reindeer, polar bears (right) and snowshoe hares.

ONLY CONNECT TRAVEL SPECIAL

8PM, BBC2 ★★★ In a special episode of this frequently brain-frying quiz, Victoria Coren Mitchell welcomes two veteran teams back to the show. So, who out of the Globetrotters and the Eurovisionaries will be able to see the connections between things that at first seem to have none? Or will you at home beat them both to the punch?

CHRISTMAS SALES: SUPERSHOPPERS SPECIAL

8PM, CH4 ★★★

During Black Friday, it wasn’t always easy to tell how real some price reductions were. Here, Helen Skelton and Sabrina Grant provide a guide to avoiding such pitfalls in the next wave of discounts, including how to read secret codes on price tags and the telltale signs of an imminent sale.

WORLD’S MOST SCENIC RAILWAY JOURNEY: MINUTE BY MINUTE

8PM, CH5 ★★★★

The crew cook bacon over their steam train’s fire during this 42mile ride through the Scottish Highlands, and it’s hard to imagine a sandwich that would taste better. We hear from passengers and staff during an idyllic, almost poetic ride from Fort William to Mallaig. RW