CREATE TABLE table_22398 ("Episode" TEXT, "Garfield Episode 1" TEXT, "U.S. Acres Episode" TEXT, "Garfield Episode 2" TEXT, "Original Airdate" TEXT)

What is the original air date of the u.s. acres episode who done it?
SELECT "Original Airdate" FROM table_22398 WHERE "U.S. Acres Episode" = 'Who Done It?'
SELECT "Original Airdate" FROM "table_22398" WHERE "U.S. Acres Episode" = 'Who Done It?'