It’s billed as "Extreme Sheep LED Art".
It’s supposed to be a promotion for Samsung’s LED TV’s, although the connection seems tenuous to me.
The video’s creators (The Baaa-Studs) say, "We took to the hills of Wales armed to the teeth with sheep, LEDs and a camera, to create a huge amazing LED display. Of sorts."
But, they fail to mention THE DOGS. I’ve never seen a sheep dog working sheep in real life — the closest I’ve been is the Agrodome show in New Zealand — but this clip is pretty impressive. I doubt they could have done it without the dogs!
A game of Pong, anyone?