Watch Full Movies The Grand Knockout Tournament Online for FREE in HD 720p on 123Movies. Download The Grand Knockout Tournament 123movies new website. The Grand Knockout Tournament (colloquially also known as It's a Royal Knockout) was a one-off charity event which was shown on British television on 19 June 1987. It followed the format of It's a Knockout (the British version of Jeux Sans Frontieres), a slapstick TV gameshow which was broadcast in the UK until 1982. The event was staged on the lakeside lawn of the Alton Towers stately home-cum-theme park. However, the event used its own specially created immersing set, meaning that the location was not very recognisable in the TV broadcast.