Eurovision: Meet the 'invisible' backstage team who make the song contest tick

Find out how Eurovision gets one act off the stage and another one in place in under a minute.

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Thirty-five seconds to get one set of performers off the stage and put the next ones in the right place.

Thirty-five seconds to make sure everyone has the right microphones and earpieces.

Thirty-five seconds to make sure the props are in place and tightly secured.

While you're at home watching the introductory videos known as postcards, dozens of people swarm the stage, setting the scene for whatever comes next.