This Is America, Charlie Brown (1988)

S1E8 The Music and Heroes of America

In the final episode of the mini series, Charlie Brown tries to persuade Schroeder to let Snoopy join the band for their class project. Schroeder agrees, but only if Snoopy can keep from going wild. As the band rehearses, Lucy suggests merging their projects—hers focuses on famous Americans. Schroeder isn't keen on the idea, but their teacher approves the combined effort.