I can't blame Bowser for loving this show and watching it all the time, even though it affects his relationship with his son Bowser Junior because he cares about nothing but Charleyyy. I agree that Charleyyy is so funny, mostly when he screws up at whatever he is trying to do! He makes expressions and sayings literal a lot or demonstrates certain tasks in unusual ways, which makes him as funny as he is! Just to name a few examples, in one episode his car needs gas, but he doesn't know what kind of gas his car takes, so he farts in the gas tank and in a way gets gas (even though I hate fart jokes and gross out humor in general), and in the Christmas episode, he says he's going to rap, but he wraps a microphone with wrapping paper. Describing funniness is not my specialty. My favorite episode is the one where Charleyyy puts a pot on his head like a hat.
Despite the title, Charleyyy's friends never appear. It has been confirmed in the latest SML video that the point of the show is the viewers are his friends, which could make them feel included and puts their names in the title (sort of). I don't know what else to say.