Except Graham Norton Show, due to the amazing host. They willingly admit (even during the show) that they discuss whether a topic is fine with the guest beforeh

Except Graham Norton Show, due to the amazing host. They willingly admit (even during the show) that they discuss whether a topic is fine with the guest beforehand, but Graham still brings out the best in people. And since there are several people on the show, he just lets them interact, unscripted.