IS
They'll all use what would generally be referred to as a medium sized studio, apart from Celebrity Juice they use the two bigger studios at TLS (they're roughly the same size, one has permanent seating though)
They would have used one of the 'medium' studios at TVC - 3,4,6,8
There's loads of panel shows on TV, everything from HIGNFY, Celebrity Juice, Room 101, Mock the Week etc that will use a smaller studio.
They'll all use what would generally be referred to as a medium sized studio, apart from Celebrity Juice they use the two bigger studios at TLS (they're roughly the same size, one has permanent seating though)
They would have used one of the 'medium' studios at TVC - 3,4,6,8