I remember that sketch clearly:
Harold (big muscular man) - Hi Howard.
Howard (small thin man) - Hello Harold.
Harold - This is the letter H.
Howard - I'm aware of that.
Harold - Name some words that begin with this letter.
(Harold picks up the H and hands to Howard which is too big for him)
Howard - Hey! Heavy! (making the H sound) Huge! (making the H sound) Hard! (making the H sound) Hop! (making the H sound) Hurts! (making the H sound) Hopeless! (making the H sound) HELP!!!
(Howard collapses to the weight of the H)
Harold - Congratulations. Hey, heavy, huge, hard, hop, hurts, hopeless and help all begin with the letter H.
Howard - (weakly) Hooray.
Ziffel said:
I remember an animated h segment with a little man and a much bigger size man. I'm a little fuzzy about how the very beginning goes. I think the big guy asks the little guy if he can think of any h words. And he hands a letter h to him that is really cumbersome because it is about as big as he is. The little guy starts to wobble while holding the h and says, "Hey! Heavy ... Huge ... Hard ... Hop? (not totally certain what word he says here) ... Hurts ... Hopeless ... Help!!" Then he falls down on his back and the h is on top of him. The big guy picks up the h and says, "Congratulations. Hey, heavy, huge, hard, hop, hurts, hopeless and help all begin with the letter h." The little guy in a very weak voice lies there and says, "Hooray."