CREATE TABLE table_61840 ("Air Date" CLOB, "Rating" CLOB, "18-49" CLOB, "Viewers" CLOB, "Weekly Winner" CLOB)

What is Viewers, when Air Date is 'July 4, 2008'?
SELECT "Viewers" FROM table_61840 WHERE "Air Date" = 'july 4, 2008'
SELECT "Viewers" FROM "table_61840" WHERE "Air Date" = 'july 4, 2008'