CREATE TABLE table_70685 ("Date" TEXT, "Visiting Team" TEXT, "Final Score" TEXT, "Host Team" TEXT, "Stadium" TEXT)

What is the date that a game at the Alltel Stadium had a final score of 6-20?
SELECT "Date" FROM table_70685 WHERE "Stadium" = 'alltel stadium' AND "Final Score" = '6-20'
SELECT "Date" FROM "table_70685" WHERE "Final Score" = '6-20' AND "Stadium" = 'alltel stadium'