The backstage crew at NBC's "Saturday Night Live" has under two minutes to do a complete breakdown of a complicated set between the show's cold open and its opening monologue.

Walls are removed. A fireplace disappears. Columns slip away. A carpet and floor are rolled up. Crew members step over, around and across each other quickly and silently.

The set changeover, embedded below, is seemingly narrated by production directors, who root for and celebrate with the crew in the background.

There is something beautifully satisfying about watching the dozen or so members of the crew, all clad in black, glide across the stage as if part of a choreographed and well-rehearsed waltz.