I don’t remember much, but from what I know is that it was this game show with 2 groups of 4 (I think in a family) answered questions of sorts. The only reason I have a faint memory of this is due to the contestants dressing up as very random objects. I remember one person was in a dartboard costume and another in some sort of bleach bottle costume? Others things I remember is that I’m pretty sure it was on ITV around the mid 2010s, around 2013-2016 I would say.
Sounds like the American game show let’s make a deal. Wikipedia says the UK had a version called trick or treat in 1989 if that’s not what you’re talking about looking for shows similar to that might be a jumping off point.