[Lauren]

As we've seen, the first task has broken the house in two. Servants and Masters. When they were making the decision as to who should go into the HND and who should stay in the main house - they based this on class (Davina even mentioned this). Shilpa, Ken and Jermaine stayed in the main house because they were of higher class (A subconscious decision, I am guessing).

Then BB introduced the Goody's. Who, without causing offence, are of a lower class. I reckon BB have decided this years theme for CBB to be of class divisions, hence why there have been so many arguments and class has been brought up in many of them.
In the most recent argument between Jade and Ken, Ken even said to her "You don't understand this class" - this caused tensions in the house even more and I suspect BB meant for this to happen to cause disputes, debates and arguments! All the things that make a good viewing.