It's fair to say BB9 and BB7 were the big daddies of twists.
BB6 is up there with BB11 as the big boss of tasks though.
BB9 was the last series we got alot of twists, and by god they were brilliant.
At least one every two or three weeks at the end of an eviction it'd be:
'Right so ___ is out, join Big Brother on Sunday for blah blah..'
'Right now ___ is out, you can catch me on Wednesday for..'
'Right and ___ is out, it's time to hand it over to Big Brother'
Was so exciting.
BB10 I sat there like

at the end of every eviction waiting for a twist.
Nothing.