What was this Sketch About?

I discoverd HH in the mid to late 70's when I was really too young to have understood it.

My folks probably had it on and in spite of what I said took a liking to it.

There was once sketch that freaked me out where a man was at a restaurant and at the end he eat a napkin.



Also does anyone remeber the truck driving skits which featured these 2 truck drivers talking to each other on the CB radio.

There was a jingle to it just before each skit.