I can certainly say that Jim was probably the first to present adult puppetry to the mainstream. At the time of The Muppet Show's first season, there was a rather risky puppet movie that was, let's say it went beyond NC-17. I won't name it but I just wanted to point out that it wasn't a success and kind of a Muppet rip off, plus it wasn't really well done. And the funny thing about the 1970s was Ralph Bakshi was making adult animated features yet there wasn't anything for adults in animation except for The Flintstones and the Jetsons and reruns of Looney Tunes, Tex Avery, Woody Woodpecker and all the other theater shorts. Though puppetry was never considered except when Jim did it. Jim struggled to get The Muppet Show on the air, all the networks turned him down, and SNL wasn't going so well with the audience at the time. But thank Goodness that Lord Lew Grade stepped into the picture and made The Muppet Show a reality. Though the irony of it was the networks that turned The Muppet Show down took the syndication afterwords.