Question: How many millions of U.S. viewers whatched episodes written by Krystal Houghton?
SQL: SELECT "U.S. viewers (millions)" FROM "1-11411026-2" WHERE "Written by" = 'Krystal Houghton';

Question: How many titles were directed in series 79?
SQL: SELECT COUNT("Directed by") FROM "1-11411026-2" WHERE "No. in series" = 79.0;

Question: Who wrote an episode watched by 19.01 million US viewers?
SQL: SELECT "Written by" FROM "1-11411026-2" WHERE "U.S. viewers (millions)" = '19.01';