My new obsession

One of my friends lent me this in September, but I hadn't got round to watching it until now. I've watched four episodes today in between revision sessions, it's brilliant! I can't believe I have waited this long to watch it, and I'm still only on series one. Hope it continues like this.

I also think that they must have got so fit filming this, with all the walking down the corridors they do. I wonder if any of them wore pedometers...