CREATE TABLE table_1889 ("No. in series" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( million ) " CLOB)

Name who directed the episode that was viewed by 4.22 million
SELECT "Directed by" FROM table_1889 WHERE "U.S. viewers (million)" = '4.22'
SELECT "Directed by" FROM "table_1889" WHERE "U.S. viewers (million)" = '4.22'