The British Broadcasting Corporation - or BBC for short - is one of the UK's leading TV and radio broadcasters, funded by the liscence fee. See here for more background info. They have also been very helpful to PXC.
BBC Mind Games
In Season 1, the only ad on the Earth edition of the Sentinel for a non-perplexian product or service was for BBC Mind Games, a (now defunct) puzzle magazine. Clicking on the ad in the sentinel takes the user to: http://www.bbcmindgames.com/
Perplex City was the subject of the BBC's culture show (in a TIAG way, I think?)
Season 2, Chapter: Hot Water
Season 2 started out with a request by Violet to investigate her plumbing issues, and has lead us to pick up on a weird trail, currently in progress. When the third power issues warnings about you, you know you are in Hot Water.