To be honest, I really only started this category because I had no idea where else to put "Don't Hug Me. I'm Scared." But I figured as long as the category existed, I might as well include a few other series here, even if I could pretty easily put them in other categories. And... really, lots of series I don't include here do have a fair bit of weirdness in them. So, whatevs.
See also weird shows and weird movies