It's called "Happy Inside." Click the bottom-right icon as you mouse over the video to make it full screen.

For cat lovers, it's a slam-dunk hit.

Guardian (UK) has the business story: "Mother London's first spot for the furniture chain involves releasing 100 cats to snuggle up in its Wembley branch." The TV ad will be shown on TV in England Saturday.

There's another video, the backstory behind getting it to happen -- the logistics of "herding cats":