CREATE TABLE table_63972 ("Year" FLOAT, "Category" CLOB, "Recipients and nominees" CLOB, "Role/Episode" CLOB, "Result" CLOB)

For which Category was Outstanding Main Title Design a Recipient and nominee?
SELECT "Category" FROM table_63972 WHERE "Recipients and nominees" = 'outstanding main title design'
SELECT "Category" FROM "table_63972" WHERE "Recipients and nominees" = 'outstanding main title design'