The United Kingdom held a national preselection to choose the song that would go to the Eurovision Song Contest 1978. It was held on Friday 31 March 1978 at the Royal Albert Hall and presented by Terry Wogan. The songs were backed by the Alyn Ainsworth Orchestra.

The Eurovision Song Contest was broadcast on 22 April 1978, with Terry Wogan providing the BBC Television commentary and Ray Moore providing the BBC Radio 2 commentary. Colin Berry returned to present the UK jury results.

Fourteen regional juries voted on the songs: Bristol, Bangor, Leeds, Norwich, Newcastle, Aberdeen, Birmingham, Manchester, Belfast, Cardiff, Plymouth, Glasgow, Southampton and London.

"The Bad Old Days" won the national and came 11th in the contest. A Song for Europe was watched by 13.7 million viewers and was the 16th-most watched programme of the week - the show's highest ever rating.

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