CREATE TABLE table_73452 ("No." FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "Viewers  ( in millions ) " CLOB)

List all directors from episodes with viewership of 1.945 million.
SELECT "Directed by" FROM table_73452 WHERE "Viewers (in millions)" = '1.945'
SELECT "Directed by" FROM "table_73452" WHERE "Viewers (in millions)" = '1.945'