I've had a look to see what's in the Bodleian and the British Library from there, but it doesn't look like 1978 is online. Post-1998 is on LexisNexis, and the BL's (paid) online service has up to 1950, but there's a gap in the middle. You could almost certainly go and read it in the BL reading room in London, though: their print/microfilm coverage of British newspapers is very good.