Grouchology (course)



  Earliest Known Appearance :  EPISODE 4 2 6 0  GROUCHology i s a course taught a t Putrid University  (  P  .  U  . ) as shown in  SESAME STREET   EPISODE 4 2 6 0 .

T he course i s taught b y Professor Nikola MESS la  ( played by  Jason Jones  ) & the  Pesties  ( performed by  JOEY MAZZARINO ,  LESLIE CARRARA - RUDOLPH  &  MATT VOGEL  ) about the goals of the GROUCH ology  online school.

 OSCAR THE GROUCH  takes this online GROUCH o log y class fro m the college , learning how t o b e a  GROUCH  scientist. Messla instruct s  OSCAR  at  his   TRASH CAN , via webcam , helped by the  Pesties.

T V / Movie s  /  Special s

 *  SESAME STREET  ( 1 9 6 9  - present )


 *  EPISODE 4 2 6 0  ( 2 0 11  )