Wow this is a weird one. Dennis Hopper is a young beatnik who's as pretentious as all beatniks on old shows, but with his good acting he keeps the character real enough to seem more like a jerk than pretentious. The funny parts have the reactions of the regulars against this character who thinks he knows more about life, and doesn't know anything.
There was an episode of Laverne and Shirley where they go to a Beatnik coffee shop, and their poems are too happy for the Beatniks. On this episode, they're just too real for him, and he thinks he's real. The fact it's Dennis Hopper makes it a very pop culture important episode.
The scene between Hopper and Bea Benaderet is a standout. The weird thing is, the characters on this show, who were dated for young people then, are timeless now, and Beatniks (and hippies) are as dated as you get. Uncle Joe gets hurt by the poet's barbs when he could have bagged on him. Sadly, cute youngest Betty Jo is not in the episode. Anyhow, despite the unique casting, it's a subpar episode, and just doesn't... flow, daddy-o.