A massive 15 percent of internet traffic is cat-related, but it's not all cute clips of kittens, it's felines like Tardar Sauce, more commonly known as Grumpy Cat, the face of billion dollar cat food, Friskies. Fans queue for hours just to have a selfie with him and his entourage includes security guards and an intellectual property lawyer!
We're also introduced to Richard Best, a vet who works with an array of animals, but also has the enviable job of casting for the Andrex puppy commercials – so cute!
Star Paws: The Rise Of Superstar Pets, Channel 4, 9pm
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