There's one episode that plays after WW1 (they make a joke about why everybody calls it WW1), I think it's actually a Halloween episode cause it features Kodos and Kang. It may be The Day The Earth Looked Stupid but I'm not sure. At one point there's a song, it's really nostalgic, a bit jazzy, the melody is played by a saxophone (or sth similar). Has anyone an idea which song I mean and could tell me the title? Thanks in advance!