Mucko Polo, Grouch Explorer
S46:E2
2016
IMDb
With Mucko Polo (Alan Cumming), Elmo, Abby, and Oscar use their five senses to explore and search for the grouchiest things on Sesame Street. Also featuring Grover finds a pyramid and Elmo the Musical-Guacamole. Brought to you by the letter E and the number 6.