CREATE TABLE table_29063233_1 (directed_by VARCHAR2, uk_viewers__million_ VARCHAR2)

Who directed the episode with a UK viewership of exactly 5.77 million?
SELECT directed_by FROM table_29063233_1 WHERE uk_viewers__million_ = "5.77"
SELECT "directed_by" FROM "table_29063233_1" WHERE "5.77" = "uk_viewers__million_"