COPENHAGEN — “OK, children, does anyone have a question?” the TV show’s host, Jannik Schow, asked. Only a few in the audience of 11- to 13-year-olds raised their hands. “Remember, you can’t do anything wrong,” he said. “There are no bad questions.”

You can’t blame the children if their thoughts were elsewhere. On a stage before them in a heated studio in Copenhagen stood five adults in bathrobes. There was a brief moment of silence, as faces turned serious. Having discussed it for days before in school, the children knew what was coming next. Mr. Schow gave a little nod, and the adults cast off their robes.

Facing the children, and the cameras, they stood completely naked, like statues, with their hands and arms folded behind their backs.

And so began a recording of the latest episode of an award-winning Danish children’s program, “Ultra Strips Down,” which is shown on Ultra, the on-demand children’s channel of the national broadcaster, DR. The topic today: skin and hair.