Like with The Muppet Show, producers, directors and performers tried to make sure that the puppet characters of Muppets Tonight were presented as living objects. However, the occasional goof would appear, like those below.
A puppeteer's head is briefly visible below the straw-nosed creature.
When Gonzo rubs the laser cannon during rehearsal for "Bats", Dave Goelz's head is visible.
During the Muppet Bandstand sketch, the top of Frank Oz's head is seen covered with a blue cap. A few seconds later, Miss Piggy's arm sock is briefly visible.
Several puppeteers' heads are clearly visible under the chickens at the end of the "Bats" number. They, as well as the chickens' arm sleeves are also visible during the goodnights along with the top of Kevin Clash's head.