There are a lot of cultural references in The Office. In fact, there are about 1,300 of them across the US series entire nine-season run, according Joe Sabia. Sabia knows this because hes meticulously catalogued every reference made throughout the series, and hes turned them into what he calls The Office Time Machine — a website that allows you to plug in a year and view a compilation video of every single time The Office made a reference to something that happened then.