CREATE TABLE table_30164 ("Series episode" FLOAT, "Season episode" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "U.S. viewers  ( in million ) " CLOB)

What was the episode number veiwed by 7.43 million viewers?
SELECT MAX("Series episode") FROM table_30164 WHERE "U.S. viewers (in million)" = '7.43'
SELECT MAX("Series episode") FROM "table_30164" WHERE "U.S. viewers (in million)" = '7.43'