Television enthusiasts will be familiar with Dan Harmon (once most well-known for "Community", now [in?]famously so for "Rick & Morty") and his formula for sitcom writing. The truly successful will stick to it without deviation.
It's for that very reason that Beth and Evan are keeping with what's tried and true: diving into an episode of "Selfie" with a little less preparation than is probably advisable (and yielding some quality discussion [and a teaser of what's to come] to boot!).