I loved the tasks in BB2, the fire one, got you to know ALL the housemates!!
The dancing one was sheer genius!!
I reckon though the BB1 one, were they all had to impersonate each other for a night, was SO funny, and should be repeated in all of them, come the end of the run!!
I think "I'm a celebrity......" stole the idea in one of the series
Oh and hi