The final episode of Professor Brian Cox's Forces Of Nature revealed how Earth's beauty is created by just a handful of forces.
He explained the science behind the colours of the planet in captivating detail.
Viewers went particularly nuts when he presented a portion of the show underwater, addressing the camera through scuba gear.
However, some viewers did think the scuba gear made Brian's voice sound eerily familiar.
Either way, the programme was certainly a hit.
Shots of the magnificent Northern Lights in Iceland and a family that chase them were a particular hit.
Brian even found a feline fan.