Seven of the eight nominees for best show have not previously been nominated in the same category at the 'Oscars of live comedy' Standup about infertility, jokes about a Georgian gourmand, and an experimental clowning fever dream: the shortlist has been announced for the 45th Edinburgh comedy award, and it's as eclectic as ever. Featuring just the one previous nominee in the best show category (the Yorkshireman Ian S…