I rented a MST3K VCR tape years ago on THIS ISLAND EARTH. What a disappointment. Most of the important parts of the movie were cut out so the robots could make jokes and deal with their captors.
To finally see the uncut movie I had to buy it on DVD. A very good movie.
Some of their spoofs are great. Others just get in the way of a good movie.
And to think Orion pushed "Barb Wire" to the distributors instead... (sigh)