Hours before Dan Levi’s “Saturday Night Live” debut, his mom took some time to cherish that moment. At Schitt’s Creek, creators will be hosting “SNL,” and along with musical guest Phoebe Bridgers, Levi’s mother, Deborah Divine, will have the opportunity to call on Levi’s youth to “bully punk.” I got it. Related: Aidy Bryant warns of “SNL” host Dan Levy’s show “Better Be Funny” with a new...