Originally Posted by mazey:
“The UK house is next door to film studios, they could ship them next door to use the sets, BBAus used a place next door for Friday comps. The garden in the UK house is a limiting factor.”
Individual tasks for immunity are always more exciting than some group task for a reward few care about anyway. That's why Save and Replace was good, also it was shown on live stream (something the Americans rarely do). Tasks also tend to be chosen for their supposed funniness rather than much of a physical or mental test unlike the American version.