I am not interested enough to spend an hour and a half watching football, but my son has just told me that during the match Wills and Kate were shown jumping up and down with delight and waving their arms in the air.
This morning he watched a number of news broadcasts, all of which showed the royal couple clapping demurely, in a calm and dignified manner.
He believes that the images are being controlled, either by the media or by the palace itself.