The Adventures of Paddington Bear

Paddington Delivers the Goods (3x21)

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It's Mr. and Mrs. Brown's anniversary and Paddington's noticed Mr. Brown is behaving rather oddly. Mr. Brown is pretending he doesn't remember so his gift will be that much more of a surprise. But when Paddington is sent to collect the gift, a piano, it'll be a miracle if the whole town doesn't find out about it.