Transcript:
Charlie Brown stands looking down angrily at the radio. He exclaims,"What a radio!"
He kicks the radio and continues,"Boy, I get mad at it!!"
Shermy stoops looking at the radio as Charlie Brown stands grimacing at it. The former asks,"What's the matter? Bad tube? Loose connection?"
Charlie Brown replies,"No!! It doesn't have any good programs!"
The joke is that he's directing his anger at the wrong thing. It's shooting the messenger, like punching your phone when seeing a picture of Musk on it.