Fixing X Big Bird and Snuffy are the hosts of "The Letter of the Day Show" on Sesame Street, and learn all about how the letter X can come at the end of a word. Details Casts Title Fixing X Genres Kids Comedy Release Date 2019-03-09 Episode Runtime 00 Hours 54 Minutes Season Number 49 Episode Number 17 Production Companies Sesame Workshop, Children's Television Workshop Kevin Clash Elmo/Hoots the Owl/Baby ? Caroll Spinney Big Bird Frank Oz Bert Sonia Manzano Maria Figueroa Rodriguez Roscoe Orman Gordon Robinson Martin P. Robinson Telly Monster/Aloysius S? Suki Lopez Nina Violet Tinnirello Charlie Jennifer Barnhart Zoe (voice) Ryan Dillon Elmo (voice) Suki Lopez Alan Muraoka Alan