Season 4 The Muppet Babies (Kermit, Piggy, Gonzo, Fozzy and company) live in a large nursery watched over by Nanny. The babies have active imaginations, and often embark upon adventures into imaginary worlds. Details Casts Galleries Posters Season Lists Episode Lists Title Season 4 Genres Animation Kids Air Date 1987-09-19 Episode Runtime 00 Hours 25 Minutes Season Number 4 Episode Count On Season 4 18 Production Companies Jim Henson Productions, Marvel Productions Greg Berg... ... Frank Welker... ... Howie Mandel... ... Katie Leigh... ... Laurie O'Brien... ... Russi Taylor... ... Original Size (1280x720) Original Size (1000x1500) Season 1 13 Episode(s) 1984-11-05 Season 2 13 Episode(s) 1985-09-14 Season 3 16 Episode(s) 1986-09-13 Season 4 18 Episode(s) 1987-09-19 Season 5 13 Episode(s) 1988-09-10 Season 6 18 Episode(s) 1989-09-16 Season 7 16 Episode(s) 1990-09-15 Episode 1 1987-09-19 Muppetland... Episode 2 1987-09-26 Water Babies... Episode 3 1987-10-03 The Incredible Shrinking ... Episode 4 1987-10-10 Where No Muppet Has Gone ... Episode 5 1987-10-17 Journey to the Center of ... Episode 6 1987-10-24 This Little Piggy Went to... Episode 7 1987-10-31 My Muppet Valentine... Episode 8 1987-11-07 Invasion of the Muppet Sn... Episode 9 1987-11-14 Twinkle Toe Muppets... Episode 10 1987-11-21 Weirdo for the Prosecutio... Episode 11 1987-11-28 Muppet Island... Episode 12 1987-12-05 The Frog Who Knew Too Muc... Episode 13 1987-12-12 Beach Blanket Babies... Episode 14 1987-12-19 Old MacKermit Had a Farm... Episode 15 1987-12-26 Adventures in Muppet-Sitt... Episode 16 1988-01-02 The House That Muppets Bu... Episode 17 1988-01-09 Masquerading Muppets... Episode 18 1988-01-16 Nanny's Day Off...