Answer: Lazytown

Icelandic-produced children’s show Lazytown–aired in the U.S. on the Nickelodeon and Noggin networks–is crafted using an interesting combination of analog and digital techniques. The show stars puppets and live actors, both of which are filmed in front of green screens using minimal physical props.

The digital set and background of the Lazytown universe are then filled in using scenes rendered in none other than the Unreal Engine, the video game engine behind dozens of popular video games like Bioshock, Splinter Cell, Gears of War, and Mass Effect.