According to Michael J. Nelson in the book "The Mystery Science Theater 3000 Amazing Colossal Episode Guide," out of respect for Robert Reed, who died of AIDS while this episode was in development, the writers decided to hold back on easy references to his role in The Brady Bunch (1969). It is only mentioned once during the entire show. *****UPDATE***** This can not be true, because Robert Reed passed away May 12, 1992. More than two years and three months before this episode aired. Which means this episode couldn't have been in development at the time of his passing.
This episode is on the Volume 1 DVD Box Set of Mystery Science Theater 3000.