The first 4 episodes of Lexx were feature length freaky Sci Fi from hell. Uncompromisingly brutal and nasty. Just for example (minor spoiler)
In the first Lexx you get to see the future society method of dealing with crime and punishment. To simply execute people would be a waste, so a special machine is constructed with lots of little saws. It saws out all of a persons vital organs, and whatever is left is drained off into a "protein bank". All of this happens pretty graphically.
After this the series ended up as typical 1 hour affairs which were sanitized in comparison, and they also lost a lot of the creative whackyness. Series 2 was ok though, but after that things went completely to bits.
If you like whacky stuff you should also look up Naked Lunch, but I guarantee confusion.
Sounds irresistible I'll check it out.