Yoinked from IMDB:
"The movies chosen for Mystery Science Theater 3000 were predominantly low-budget B-movies because the show itself was low-budget and producers could only afford films with expired copyright or had otherwise cheap licenses. The idea of RiffTrax came about after Mystery Science Theater 3000 was canceled and Nelson had researched and consulted a lawyer about the possibility of directly releasing DVDs of films with the commentaries included. But Nelson realized this initial idea was not feasible since he would be "sued out of existence." Instead, the best way to distribute the commentaries would be to sell them independently of the films, to avoid having to obtain the rights to distribute the movies themselves. There would be no legal or monetary restrictions to prevent Nelson from producing them, though viewers would have to provide the movies themselves.
Nelson has been accompanied by former Mystery Science Theater 3000 co-stars Kevin Murphy, Bill Corbett, Mary Jo Pehl, and Bridget Nelson, in addition to Internet personalities Richard Kyanka (of Something Awful fame), Josh Fruhlinger (the Comics Curmudgeon) and Chad Vader, as well as actors Neil Patrick Harris and Fred Willard, and satirist "Weird Al" Yankovic. Nelson has said that he would like to bring in other guests as well."
Steve's Snacks Of The Week:
Roasted Garlic Rye Chips
Handful Of Pills
Deep Sense Of Self-Hatred And Shame Over Never Being Able To Do ANYTHING Fucking Right