When Isaacs was 11, he moved with his family to north west London, attending The Haberdashers' Aske's Boys' School, in Elstree, Hertsmere, in Hertfordshire, where he was in the same year as film reviewer Mark Kermode.
Kur ai ishte 11, ai u zhvendos me familjen e tij në veriperëndim të Londrës, të ndjekur "Aske's Boys Haberdashers Shkolla", në Elstree, Hertsmere, Hertfordshire (Herts), ku ai ishte në të njëjtin vit si recensues Kermode film Mark.