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It’s almost fifty years since ABBA won the Eurovision song contest in Brighton with their song Waterloo and the band were launched onto the world stage.

But despite rave reviews, the UK scored ABBA ‘nul points’... and that's still a bone of contention for Today guest Bjorn Ulaevus from ABBA.

He talks to Basil Herwald, a British juror from that 1974 panel, who was keen to set Bjorn right on a few things....