Tubeworker recommends to Endemol and Channel Four a possible venue for the next series of Big Brother - the new Waterloo & City line signal cabin.

It's got cameras pointing at the staff, though no-one seems to know who's looking at the monitors. And you have to walk through the changing room to get into the cabin, meaning that people don't get to change in private.

Perhaps management could introduce a Diary Room too, then the Signal Ops could go in there and sound off about their employer's stupidity.