Many television programmes of the age, particularly on the UK's PAL system, suffered from distortion patterns with certain designs, such as striped shirts. These distortion, or "Moiré" patterns, are particularly prominent here with Lennie Bennett's grey jacket, which is composed of small black dots, and reacts badly on camera whenever he moves.
Terry mishears the first answer in the game, causing Lennie Bennett to jokingly rebuke him.
During the first game, Karen Kay accidentally shows her written answer while placing her answercard down. Had the contestant seen this, he could have used it to pick up an easy point.
Rula Lenska forgets to press her "ready" button during the third round, and has to be reminded by Terry.
During the first "Supermatch Game", the sliding panel to the question gets stuck as it's revealed. Terry jokes: "slickly pulled across there, and somebody's just lost a finger, I can hear from the screaming inside."
The BBC had a strict "no advertising" policy at the time, meaning that contestants rarely revealed the actual names of the places they worked. Contestant Keith Woodward accidentally begins to say "Abbey National", before correcting himself and rephrasing his place of work as a building society.
After Terry jokes about the contestant nearly getting a promotion, Lennie Bennett disrupts the show by repeatedly naming the Abbey National, before he and other members of the panel begin to shout out alternate building society names, including Halifax and The Woolwich.
After Terry jokes about the contestant nearly getting a promotion, Lennie Bennett disrupts the show by repeatedly naming the Abbey National, before he and other members of the panel begin to shout out alternate building society names, including Halifax and The Woolwich.