One of the best things about 30 Rock was that it constantly played with race in a way not seen on television since the 1970s Lear Collective. Black face, white face, Liz's white guilt—on and on. Perhaps because of its consistently low ratings, no one really ever commented on the way 30 Rock—smartly, with sharp… » 3/20/15 1:27pm 3/20/15 1:27pm