Today, I found Ep.1 of this anime on Gyao. Though Gyao has only Ep.1 as a free content, I can watch it on my TV, the station is BS11. If you have an interest in this anime, you can watch it on crunchyroll.
I liked EP.1, so I will keep watching.
The original novel (有頂天家族) is written by Morimi Tomihiko (森見登美彦).