Rubusfruticosus I suspect the radio times is not taking account the edits - they don't actually re-certify the film, 'cos the certifications are just for cinema or DVD releases. You might however be right, I see it's actually starting at 7:40 so might be in the "8pm" edits, rather than the earlier one, I thought it was 6pm when I looked before.
There's a reddit thread suggesting the itv2 version had been butchered!