He’s working in several capacities to help subject the hosts to the experiments (and now conducting the post-experiment exit interviews — clearly to monitor their minds), so obviously he’s one of The Mads. Therefore, I submit…
Mad Matt: Beyond Gizmoplex Kingadome
MS Tea Time
Gizmochat
The Not Too Post Show
Two Bots, a Host and a Gizmo Place
Talkin’ Matt’s Shirt
Comedians on Moons Getting Riffy
The Hex-View
The Dick Cavett Show
White Dot permits puny Humans to offer Opinions
We could take a page from Colbert’s book and just use a different viewer-submitted title every time we need to say the name.
Sit and Watch Them All
MST3K Aftershow
Just Relax
“Watch Out for Takes”
Also, I LOVE THE HELL OUT OF THIS. 
There are so many good ones in this thread, but I’d have to cast my vote for this one.
I’ve been sitting here not letting myself post in this thread until I can top it and… well… 
You know I’d be the first to encourage you to go for it!
I throw out another silly one:
Who’s Wearing Pants?
The title of the show should be this GIF:
(No, I don’t know how to pronounce it.)
Eh, it worked for The Artist Formerly Known as Prince. We can figure it out.
… and who’s hiking them up?
Matt Shows: The Fans Are Great
(Say it out loud. I think it works better than, say, The Fans Of Hate. We do enjoy making fun of bad movies, but we’re not, for the most part choughMunchiecough hating on them.)
The after-parties after-party.
MSTDirect
Crows Variety show, staring Matt.
The great refrain: where Matt tries to control her nerdom.
The Pretty Niiice Show!
After Call, Roll Call.
Cowboy Matt’s Own Original Red Hot After Shoooooooow (pew pew pew) BBQ Sauce
(A decidedly bold title, I know.)
Kids Love the Great Taste of Mystery Science Theater!
Dogs don’t know it’s not bacon!