The Alleged Robot: While Gypsy repairs the original Crow, she gives Mike and Tom a "loaner Crow" - by AMC no less - that she's been tinkering with. He can't speak coherently, he shakes constantly and smoke keeps belching out of him - but he's got a killer stereo!
The Cast Showoff: As in so many episodes, Kevin Murphy shows off his glorious baritone.
Continuity Nod: In the opening host segment, Crow goes in for repairs and is temporarily substituted with a less than optimal Fake Crow. When the real Crow returns, he says that Gypsy needs Fake Crow immediately; some other guy's Crow got trashed and he needs a loaner. The Continuity Nod part is the fact that there is another Crow - the one who stayed in the past over the course of Time Chasers.
Loaner Crow is actually the older version of the Crow puppet from the Comedy Channel era, recognizable by his slightly longer "beak" and duller-colored eyes.
Friendly Enemy: Without Pearl there to egg them on Bobo and Brain Guy drop their respective beefs with Mike to just hang out and share some beers.
Genius Bonus: AMC cars had a reputation of being incredibly durable, which was equally a drawback since they often were functional long after they should have been retired.
MST3K Mantra: Invoked when Leonardo da Vinci visits Mike and the Bots partway through the movie. The Satellite of Love crew complain that they can't understand the movie, especially in terms of where and when it's supposed to be set. Leo's response: "Hey, it's a bad movie."
And once again, the Servos decide to launch into a Bawdy Song, causing Mike once again to freak out.
Genius Bonus: "Sir Thomas Neville Servo Consort of the Middle Ages Just-After-the-Plague Singers" is a reference to classical conductor Sir Neville Marriner, founder of the Academy of St Martin in the Fields chamber orchestra.
Something Completely Different: Pearl joins Crow and Servo in the theater in the first segment, in an attempt to see why Mike isn't miserable from all the bad movies she sends him. Mike takes Pearl's place in Castle Forrester, except he doesn't do any work and just plays poker with Bobo and Brain Guy.
Special Guest: Leonardo da Vinci shows up in an ornithocopter-spaceship and complains (in a thick Brooklyn accent) about the movie's portrayal of him, calling the twerp in the film a "mook." When Servo wonders how Leo's still alive, the feisty Italian takes it as a threat and goes for his gun. At the end, Mike concludes that it's not a good idea to ask what Leonardo da Vinci does for a living.