Ben Sinclair and Katja Blichfeld are the creators of the web-turned-HBO series High Maintenance. (Ben also plays \u201cThe Guy,\u201d the show\u2019s pot peddler.) On Nerdette, Katja and Ben talk about how the show has changed now that it\u2019s an HBO production, why the simplest episodes are the most effective, and how they love to talk to strangers.