Show # 29 The mailbox holds a musical surprise for Fleegle. Details Casts Galleries Posters Season Lists Title Show # 29 Genres Family Animation Release Date 1969-11-15 Episode Runtime 01 Hours 00 Minutes Season Number 2 Episode Number 11 Production Companies Hanna-Barbera Productions, NBC Paul Winchell... ... Don Messick... ... Daws Butler... ... Robert Towers... ... Allan Melvin... ... Jeff Winkless... ... Original Size (1280x720) Original Size (960x1440) Season 1 19 Episode(s) 1968-09-07 Season 2 18 Episode(s) 1969-09-06