I just watched last night's episode and I couldn't help laughing by how much Luke was ripping on Mark. He said he's met Mark like 3 times prior and mentioned an incident during Samanda's bday bash on a boat where Mark was attention-grabbing.

He also mentioned how Mark followed every BB cast at the party.

Luke talked so fast I don't think Emma knew how to stop him.

He implied that Mark was grilling the ex HM's.

Aye, he said Mark smuggled himself on the boat, worked his way up to the top deck, and was bothering all the previous BB housemates to get tips.
Luke implied Mark has studied all the Big Brother series so far and has got the strategy of winning it down to a tee
Emma was speechless tho, which was nice

It will be so depressing if a tryhard fake like mark wins BB. Whats next, mark as rylans new sidekick on bots?

I didnt like Luke in the house but must admit for years i have always thought he speaks a lot of sense out of the house, and last night he was brilliant! Emma and the producers wont want him back on the panel now he spoke negative about their "favourite"..in other words he went off script