CREATE TABLE table_31242 ("Episode" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "UK viewers  ( million ) " CLOB, "Share  ( % ) " CLOB, "Original air date" CLOB)

Who is the director when there are 2.70 million viewers?
SELECT "Directed by" FROM table_31242 WHERE "UK viewers (million)" = '2.70'
SELECT "Directed by" FROM "table_31242" WHERE "UK viewers (million)" = '2.70'