CREATE TABLE table_17871 ("No." FLOAT, "Episode" CLOB, "Writer" CLOB, "Director" CLOB, "Viewers ( millions ) " CLOB, "Original airdate" CLOB)

Who directed Episode 5?
SELECT "Director" FROM table_17871 WHERE "Episode" = 'Episode 5'
SELECT "Director" FROM "table_17871" WHERE "Episode" = 'Episode 5'