Louis CK “Live at Madison Square Garden” picture disc. We might all owe a debt of gratitude to Louis CK. Not just for his numerous comedy specials or his great TV show, but for bringing “alternative” comedy to the masses and for making comedy “cool” again. It would be completely ridiculous to say he reinvented standup, but what he most certainly did was present this idea to the mainstream that standup can be smart, challenging, and angry. And while...