Dre (Anthony Anderson) is excited that his mom Ruby (guest star Jenifer Lewis) is visiting for Thanksgiving and prepares the guest bed with potpourri and rose petals. Rainbow (Tracee Ellis Ross), on the other hand, is decidedly less excited about the arrival of her mother-in-law. For Bow, it's like the coming of winter in "Game of Thrones." From Season 1, Episode 8 of black-ish, "Oedipal Triangle." ABC WEDNESDAYS 9:30|8:30c.