Sherlock Holmes (1984)

S02E14 Blinky Bill and the Polar Bears

Blinky’s crew encounters Boris, a polar bear who has journeyed from his human-dominated homeland to Australia. Boris is in search of a suitable place to settle and hopes to rescue his family from the circus they were part of. Just as they’re making plans, a letter arrives from their grandparents, urging them to come back north.