22 Celebrity Series, 18 regular series and 4 specials. Without a doubt, Big Brother is the most successful and well known reality TV series in televisions history. Initially conceived in 1997 and debuting in the UK in 2000, it’s become a global phenomenon, running for over two decades and amassing an incredible 387 seasons of Big Brother in over 54 different countries and regions across the globe. For all its successes, Big Brother has been plagued by accusations of fictional storylines, racism, abuse accusations and plenty of sex. So far, the most recent series of well-loved Celebrity Big Brother is no different, with EastEnders star Roxanne Pallet being removed from the house after falsely accusing her fellow housemate Ryan Thomas of assaulting her, despite footage being readily available of a very different set of events.

To see how many of you are hardcore Big Brother fans, For this piece, we’ve teamed up with Paddy Power to put together this quiz to see if you can figure out which of the infamous Diary Room chairs belongs to which series. We’ll drop you a handful of hints, but the rest is down to you. For those of you who don’t know, the Diary Room is used for housemates to vent their feelings and emotions away from the rest of the cast, but live to the whole world.

Be sure to share it with your friends, and drop us a comment to let us know how you got on! Are you the ultimate Big Brother fan? Let’s find out!