Hm....H! is ALWAYS VERY GOOD!! Glad to see a TTTP regular enjoying it.
That eppy is "THE DAWN OF TIME", argurably one of the best eppys of the show. I forget the name of the sketch, though.
Daffy Duck also makes an apperance in "WORLD WAR II-Pepper's Pep Rally with Dwight Esinhower" when he comes to tell Loud Kiddington to stop saying "DUCK!"