Examples: Housemates, House Design, Tasks, Twists, Rule Breaks, Eviction Order, Romances, Divides (Groups), Winner or simple The Eye etc.
Not seen BB1 + BB2.
BB3 - Winner [Kate]
BB4 - N/A
BB5 - Divides [Lip Gloss Bitches/The Jungle Cats]
BB6 - House Design (the garden
)
BB7 - Twists (Secret Garden, During Prison Task, Ex-Housemate Return - even though everybody hated that etc.)
BB8 - The Eye
BB9 - The Eye
BB10 - Housemates (made this epic series
)
BB11 - Tasks (Ignore The Obvious, Titan, Puppets, Uber Cougar)