Gaby Roslin hosts as celebrities and their dogs are joined by members of the public and their pet companions to compete in challenges set to test both the pooch and its owner and their hidden talents.
Tonight sees chef Ainsley Harriot and his Golden Labrador, Bobby, join forces with a member of the public, and go up against TV presenter Jules Hudson, his Black Labrador, Lolo, and his team.
Which pet pooch will prove themselves in the water, playing fetch and running around doggy assault courses?
Sport Relief's Top Dog, BBC2, 6.30pm
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