Host Zach Galifianakis conducts comical celebrity interviews sitting with his guests between two potted ferns on a sparse set, in the awkward style of low-budget community access cable channels.

During a chat with BUILD Studios, "Between Two Ferns" mastermind, Scott Aukerman, shared the story behind former POTUS Barack Obama’s memorable 2014 appearance on Zach Galifianakis’s web series. Zach ...