Thack and Bertie researching procedures (full of cocaine and on willing Asian Prostitutes!!) and then performing a successful placenta praevia for the first time was fucking amazing.
Thackery discovering Algenon's undercover negro clinic and watching his annoyance turn to amazement as he sees some of Edwards medical advancements. Thackery finally casts aside his racial prejudice and accepts Edwards for what he is. "Welcome to The Knick Mr Edwards"
Also, loving the developing relationship between the big Irish nutter that is Tom Cleary and Sister Harriet.