Have you ever wondered about the origins of the things that surround you in your everyday life? Where did they come from and how did they get here? Those questions are answered on the new variety show “Za Gyakuryu Risaachaazu” (The Reverse-Flow Researchers; TV Tokyo, Mon., 8 p.m.).

The main topic of the two-hour special premiere is something that you probably don’t have in your everyday life: bird’s nest soup. It’s an expensive dish in Chinese restaurants, but what exactly is it? Well, for one thing it’s made from the nests of swallows.

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