The video store scene was shot at Video West, an institution in West Hollywood, CA. Opening in 1984, the store famously carried a wide variety of VHS titles, adult and otherwise. The store closed in January, 2016.
While at the video store deciding which porno they should rent, David suggests one starring an actor who Keith claims is "too veiny". He chooses "the new Matt Summers" instead. Matt Summers is a real life porn star and the video he stars in Oral Exams (2001) is shown being picked up by Keith.