[Jodie.]

Say something that happened by pure luck and chance which made a series much better x

I’ll do some:
BB6: Makosi being cast Or her doing all the secret missions?
BB7: Aisleyne joining thanks to Pete
BB18: Isabelle being chosen as a HM

[Eddie.]

BB3: The right casting made it the highest rated series ever.
BB5: The whole casting and creative team responsible for that series.
BB8: Charley's fake eviction, imgaine if we lost her that early if her eviction was real...
just some of mine!

[Epic.]

BB6: The idea of casting 16 of the most unhinged, dangerously over-the-top housemates in some way or another could've unfortunately turned fans away, but luckily they picked the right ones.
BB6: Makosi never getting nominated properly, as any time Week 7 onwards she definitely would've got evicted, making the twist with her and Vanessa more rewarding.
BB7: Banning Sezer and his gang the right to nominate, which completely turned the tables against him and got him evicted asap without inflicting his bullying power like he wanted to.
BB7: How Aisleyne became a housemate
BB8: The Charley bias
BB17: The public Ryan and Andrew to enter the Other house first in retrospect was the right choice, as the rest of the Others had stuff more suitable to do later on (Natalie trying to turn the house against Hughie, Charlie's plasma screen reveal to Jason and having an uncomfortable first week, Chelsea entering the Others house while Jayne is there, etc.)
BB18: How Isabelle became a housemate. This one is especially funny because originally they were definitely picking Sam and Savannah but because he didn't like Sam, Lotan pushed for them to pick Isabelle instead

[Eddie.]

Isabelle would have become a HM anyway, entering on Day 25, though she would be a second chance one.

[Epic.]

Which would ruin the series since Lotan wouldn't be removed, she wouldn't have any chance of winning, and Sue, Simone, and Andrew would be much more competitive than her and she'd just get swallowed up by an early eviction

[RileyH]

BB18: Issy staying over Savannah despite having like 40% to evict