A similar title card to the one used for this episode will appear in episode 46 ("Caveman Huck"); both show Huck running away from a dragon or dinosaur which shoots fire either from its mouth or nose. The only real differences being the direction Huck is running, and his clothes.
This is the second time Huck portrays a knight. The first time was in episode 2, "Sir Huckleberry Hound".
Dragon: (while twisting Huck's leg) Say uncle!
Huck: OK, Uncle Dragon.
Huck: A toy dragon. What will they think of next.
King: (to Huck) Either you go slay that dragon, or you marry this drag... my lovely daughter.
Narrator: Once upon a time, in a little kingdom, there was a very worried little king.