For the holiday weekend, HBO is repeating the first three episodes of The Knick in a mini-marathon, so folks can catch up. What makes this noteworthy? Because HBO is repeating a show that it didn’t present the first time, because The Knick premiered, and still runs, on sister network Cinemax. But it was so well-received that HBO has made room for it on its own schedule. Lots of room. Clive Owen stars.