Calling all Daffy duck and looney tunes fan's?

Im trying to find a cartoon of the first daffy duck created by Tex Avery the one that was a bit mad and ran around yelling "Woo-hoo! Woo-hoo! Woo-hoo! Hoo-hoo! Woo-hoo!". I have found a coloured cartoon called porky's duck hunt but I think there may have been a black and white cartoon before that where he was in a hospital I think he was a doctor in it, can any one remember that one or tell me where I can watch or down load that cartoon?