When the Muppets and Sesame Street reference each other

Just a random idea I came up with! This counts for direct references (verbal and photographed) NOT CAMEOS! Copyright Disclaimer under section 107 of the Copyright At 1976, allowance is made for ‘fair use’ for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.