Muppet Babies
I have seen things that have said that Muppet Babies was made becasue of the popularity of the Muppet Babies scene in this movie. I don't think that's true.
The Muppets Take Manhattan was released in July 1984, and Muppet Babies was first broadcast in September of the same year. That's only four months for a movie to be released, a scene to be popular, and for a series to be made based on the popularity of one scene. I don't think the series could have been made that fast, especially not an animated one. The Jim Henson Company would have had to make a deal with a network, made a deal with an aniamtion company, and hire a lot of people to make the show. That sounds like a lot of work for four months. Muppet Babies didn't look like it was quickly produced to me, especially the first season. And Jim Henson didn't approve of Muppet merchandise that didn't have high standards (though the show wasn't a product). One year later, the popularity of Muppet Babies led to CBS ordering a secodn series, Little Muppet Monsters, which Jim Henson chose to have taken off the air after two episodes had been broadcast because it was put together without much development time.
I don't know if there was a test screening, or how many months in advance the screening was. But maybe the scene was popular with test audiences and a series was approved. Or maybe the scene was just popular with the crew and Jim Henson chose to allow for a series.
Either that, or the idea for Muppet Babies as a series was planned first and the sequence was made to sneakily promote an upcomming series.