From tyrant bosses to science’s biggest mysteries (seriously, why are yawns contagious?), today’s show had it all. We spotted celebs at the traffic lights, unpacked Justin Trudeau and Katy Perry’s rumoured connection, and watched Robert Irwin’s emotional Dancing with the Stars moment. Plus, the Wednesday Wheel spun us into Spelling Bee chaos and Joel brought the heat in his showbiz round-up.

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