CREATE TABLE table_name_87 (money_requested__ INT, first_aired VARCHAR)

how much money was requested on the show which aired on 4 september 2011?
SELECT SUM(money_requested__) AS £_ FROM table_name_87 WHERE first_aired = "4 september 2011"
SELECT SUM("money_requested__") AS "£_" FROM "table_name_87" WHERE "4 september 2011" = "first_aired"