where did they get this from?

The other morning as we were getting ready for whatever, the kids decided to watch a little sesame street, but in their own way...
standing on stools, right in front of the screen. Nice. Who came up with this idea? You know that they didn't get it from seeing me do it.
I will say that it is funny to seem them both want to do the same things all the time. Harrison has a glass of milk so Gwen wants a glass of milk. Gwen stands on a stool to watch t.v. so Harry goes to find a stool so that he can watch t.v. while standing on a stool. Now if only this little game factored in things like brushing teeth, and being nice, or taking better naps. That would be perfect.