Hippo watching tv

Liem got a marvelous toy zoo set for his birthday that he's been playing with every day since he got it. It's got a jigsaw puzzle base, fences, trees, bushes, all sorts of animals, people, even a ticket booth with a turnstile. He kept saying "water" everytime he played with the turnstile and we couldn't work out why until we finally realised that the turnstile looks like a tap. The ticket booth has a small wooden cash register which Liem thinks is a tv. And for some reason, he always arranges the hippo to watch the tv. No idea why.