Fresh Water provides an expansive subject for the third program in the BBC's fascinating new natural history series. Broadly, we investigate   the world's lakes and rivers and the creatures which inhabit   them. Thus we visit the deepest lake on the planet, Lake Baikal in Siberia. We observe colonies   of Indian smooth-coated otters. A magical series which gives us a real sense of context in relation to the planet we inhabit. BBC 2 FAMILY GUY 11.45PM Road to Europe, without proper identification, Brian and Stewie stow away on a plane they think is leaving for England. They're wrong, and soon they're in Saudi Arabia (Brian: "Oh my God, we are finished. We are lost in the desert.") at the beginning of a long trip home. ITV 1 AGATHA CHRISTIE'S POIROT 9PM Cards on the Table, Tonight's mystery concerns the death of one of London's richest and most mysterious men, Mr. Shaitana (Alexander Siddig), who has a fascination with crime. Shaitana hosts dinner and a game of bridge in his apartment, but when the time comes for the first guests to take their leave, they discover that their host has been stabbed   through the heart. CHANNEL 4 THE GAMES: LIVE 9PM For the first time on The Games, the men fight in a Kendo tournament, using 1.2m shinai (bamboo swords). The women compete in the cycling, racing wheel-to-wheel on competition bikes with no brakes. Plus other news from the English Institute of Sport in Sheffield. A mystery story adapted from Agatha Christie's novel will be shown on   _  .
BBC 1 BBC 2 ITV 1 .Channel 4