For example: £1, £4, £20, £31, £70, £72, £300, £301, £600....
The recording ends, at an unpredictable point, with a "bong" sound. If the player shouts "stop" before the "bong", he or she wins the last sum of money mentioned. If the player waits too long and is interrupted by the "bong", he or she wins nothing. Contestants who shouted "stop" would then be played the rest of the tape to see how much more they could have won.
The numbers would go up in varying increments, sometimes 3 or 4 numbers differing by only a few pounds, and then a jump of several hundred pounds. There were also various special tapes that had holidays on them, if the contestant waited long enough (without being bonged out).
An additional variation was the "Bouncing Bong" which, instead of just going up, went up and down randomly, with the contestant having no idea whether the next number would be higher or lower than the current one. Again, if the tape "bonged out" before the contestant said stop, they received nothing.
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