Here’s a full rundown of what to expect in tonight’s episode of Big Brother, which continues on ITV2 and ITVX.THE GC IS BACK IN THE BUILDINGGemma’s surprise entrance on eviction night sends a wave of excitement through the House, with housemates left gobsmacked. She’s there for a short time, and she wants it to be a good time. Speaking to Housemates, she says: “I think for the next 48 hours, can we just have fun?! Are you alright with that, Omar? You’re up for it? I ain’t gonna splash you in th