The editor, Larry Lamb, was originally from a Labour background, with a socialist upbringing while his temporary replacement Bernard Shrimsley (1972–75) was a middle-class uncommitted Conservative. An extensive advertising campaign on the ITV network in this period, voiced by actor <answer>Christopher Timothy</answer>, may have helped The Sun to overtake the Daily Mirror's circulation in 1978. Despite the industrial relations of the 1970s – the so-called "Spanish practices" of the print unions – The Sun was very profitable, enabling Murdoch to expand his operations to the United States from 1973.
Who lent his voice to a campaign that aided The Sun in passing the Daily Mirror in 1978?
Christopher Timothy