CBBC Summer 1990: Quack Circles

The phenomenon of corn - or crop - circles was at its peak in the summer of 1990, with Newsround reporting on various scientific experiments to prove or disprove their origin. Coincidentally, the mysterious Quack Circles started to appear in the Broom Cupboard one afternoon. These were simply yellow paper circles with "quack" written on them - and they appeared in greater number with each successive link. Andi eventually realised that Edd was behind them - but not before they had appeared on his face and even on the BBC1 symbol before Neighbours!

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