The Island with Bear; DYDD MERCHER.
Grylls Channel 4, 9pm Reality TV has been around for long enough to risk becoming stale. New shows must, therefore, fight that tide by finding ever more ways to remain exciting. Channel 5 took it to new heights with 10,000 BC, which at times looked set to become the first TV show to inadvertently kill off its cast. The Island, as it returns for its second series, appears to be almost as perilous - but with the added advantage of having a lot more real-world context. Survival expert Bear Grylls imparts his knowledge to teams of men and women, before splitting them up and dropping them on separate Pacific islands. Each episode alternates between the teams, and tonight, the men face fierce currents as they try to swim ashore.