Seriously, does science fiction get any funnier than, well... pigs in space. When I was young we prayed The Muppet Show would have the latest serial installment of Pigs In Space. The segment was random so it didn't appear in every episode. We loved the adventures of Link [as in sausage link], Dr. Strangepork and Miss Piggy. If someone told me there would be a sci-fi serial based upon pigs in space I would have told them 'yeah right, when pigs fly.'
Okay perhaps there is funnier, but this stuff is simply timeless and you know those special effects are really something special. Joking. Not at all. It's just a good old-fashioned goof.