Glenda Jackson Sings "Battle at Sea" with the... by taxidrivermow
A friend loaned me a VHS copy of Nasty Habits not too long ago. Based on Muriel Spark's The Abbess of Crewe it's a black comedy metaphor for Watergate with Glenda Jackson in the lead, which is to say the Nixon part.
I've remembered this episode of The Muppet Show for a long time. Jackson, give or take a scheming nun, is best known as a serious dramatic actress. So it's admirable that she's so willing to throw herself into the part of a high seas pirate taking over the Muppet Theater.