Right at the start there, the bird is holding a protest sign that says "Tweet" and some of the others seem to have similar signs. I like that kind of stupid detail in something that is probably not going to be seen.
Also, love the show. I used to get into arguments with friends about whether this show was great or stupid. I loved it, they hated it. And it was always for the exact same reasons.
The best thing about this show is watching half the Brits in the background furiously ignore the tomfoolery. Eyes forward, chin up, I'll have none of this, then.