Question: Who wrote the episode with 7.52 million US viewers?
SQL: SELECT "Written by" FROM "1-28688313-1" WHERE "U.S. Viewers (in millions)" = '7.52';

Question: What are the titles of episodes numbered 19?
SQL: SELECT "Episode" FROM "1-28688313-1" WHERE "#" = 19.0;

Question: Who wrote the episode with 9.81 million US viewers?
SQL: SELECT "Written by" FROM "1-28688313-1" WHERE "U.S. Viewers (in millions)" = '9.81';