Chi's Sweet Home. I feel kind of guilty about being so in love with a fake kitten. I want one!
Episode 3: The Bath
More Japanese people filming their cats can be found at the blog of Maru.
And also, this cat, who seems like he enjoys having little bits of tape stuck to him.
And of course, there are a million videos of people chasing their cats with RC Daleks. This one made me crack up.