The camera jolts around the 8 minute mark when focussing on Terry.
Around the 18'40m mark, Anna Dawson speaks to Terry about his hand-held microphone. As she points at it, she brushes past her own desk microphone, causing a distortion on the sound.
In the question about the North Pole, Paul Daniels gets the bleep sound to indicate a wrong answer before he's even revealed what his answer is.