Who is the best pet on Sesame Street? Is it Zoe's pet rock Rocco or Telly's hamster Chuckie Sue? Could it be Elmo's fish Dorothy or Baby Bear's parrot Ralphie? Find out when Maria helps the friends settle the issue. Cookie Monster knows the best answer is the letter B, and special guest B.B. King agrees withg a song! The music keeps coming when Big Bird and Snuffy sing about how they solved a problem, and then Big Bird is off on a Journey to Ernie!