This one is tough but if you're lucky, you can find them.
I had to rip my own DVD sets of Kids in the Hall and Mr. Show.
I got really fuckin lucky when I found copies of Get A Life.
I've had halfway decent luck with Soulseek with more obscure shit (like Get A Life was found on Soulseek), but a lot of people on there have their collections locked up and only want to "trade rare shit" and if you don't have rare shit they want, you can kick rocks. I fucking hate it, because it's the antithesis of what piracy is supposed to be, which is freely sharing. These guys have turned it into a retro collection competition and it sucks.