Episode 4504 - Numeric-Con Thursday September 18, 2014 Sesame Street is hosting the Numeric-Con convention and Elmo and Leela are going! Leela helps Elmo create a plan so he can do the things he wants to do most. Things are going well until Elmo discovers that his favorite hero, The Green LanTEN, has left. Now how will he be able to finish everything on his plan? Subject: Math, Self-Regulation Brought to you by: A & 0 Word on the Street: Flexible – To change or bend easily. If you've seen "Numeric-Con" please like this post and share your thoughts below.