CREATE TABLE table_29063233_1 (directed_by VARCHAR2, uk_viewers__million_ VARCHAR2)

How many directed by entries have UK viewership over 6.16 million?
SELECT COUNT(directed_by) FROM table_29063233_1 WHERE uk_viewers__million_ = "6.16"
SELECT COUNT("directed_by") FROM "table_29063233_1" WHERE "6.16" = "uk_viewers__million_"