Have a screencap, but don’t remember which episode it’s from? A host segment, song, or riff you remember part of but not which episode it came from to watch it again?
Post your questions here, and one of our crack researchers (ie your fellow fans) will try and find the answer.
That image is taken from the Turkey Day-themed host segments for the Season 7 premiere, Night of the Blood Beast (not to be confused with the regular non-Turkey Day-themed host segments).
What episode has Tom teaching Mike how to sing the iconic “Hum da de hee hee. Huwa! Huwa!” song? Tom and Crow both sing it in Monster a Go Go where Gypsy says, “I don’t get you!”, but there’s another episode where Mike is learning the song.
I believe Tom teaching Mike to sing that odd song is from #610, The Violent Years.
What’s the episode where optiMSTie didn’t have an answer at the ready?
KTMA-03, Star Force: Fugitive Alien II.
…
HEEEEEEEEEEEEEEEEEEEY WAIT A MINUTE
That one’s The Slime People.
That one’s The Dead Talk Back.
And that one’s The Skydivers!
I’m reading through this and just laughing. Maybe I should edit that line in the opening post to and one of our crack researchers (ie @optiMSTie ) will give you the answer. 
LOOOOOOOOOOOOOOOOOL
Heh, fair enough, aye!
what about this one? What episode is this from?
I was saw a this fanmade mst3k tribute video that was deleted, but which episode was it when Gypsy was inadvertently knocking everyone other with her head? It’s not the Gila Gila Monster, or the Painted Hills, I know it’s either in seasons 2, 3,4, or 5.
Help I can’t remember the episode where we see unexpectedly ripped Dr Forrester shirtless! I must prove he is ripped, my buddy doth not believe me )':
Hello, hello! Welcome, Bienvenue!
The episode you’re looking for is San Francisco International. A similarly shirtless but less-similarly ripped Frank mentions doing some work on the place.
Not that I want to encourage these sort of filthy thoughts about Kim Catrall’s lover, but here you go at the correct time code:
San Francisco International! You also get a good look at his abs at the end of Gamera vs. Zigra. 
Hercules Against the Moon Men.
Did somebody mention jacked Dr. F?
Here’s one for you:
I went to an afterschool youth group thing with a nice couple, and one day I showed up and they were watching Mystery Science Theater 3000. This would have been around '93 or '94. It was my first exposure to the show (It would be a few years before I even knew what it was called!) and I’ve never encountered that episode.
All I remember is there was a guy flying through outer space with a jetpack. The Jetpack was leaving a huge trail of smoke and some sort of fart joke ensued. (This is how you endear 14-year-old-me to a new TV show!) I’m pretty sure it was black and white. It may have been a Commando Cody short, but I haven’t seen that scene in any of the Commando Codys I’ve seen so far.
