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.

The show's reporter interviews a top chef who explains the secret to bird's nest soup as well as to the import agent who sells him the ingredients. From there, the reporter follows the trail back to Thailand, where the nests are procured.