I went back to Batman TAS and holy crap. I had left off with Appointment in Crime Alley, a really good episode that makes me wonder just how fast Batman is (or how small Crime Alley is) because Batman gets around everywhere between 8 and 9 PM.
Next up was the Mad Hatter's origin episode, and wow, this thing is a lot creepier now that I'm older and also because it's 2017. I mean, Mad Hatter never seemed like a good guy or sympathetic once he gets his villainy rolling, but holy shit.
Then I watched Dreams in Darkness, and... this one lost me. I get the concept behind it, but it didn't exactly hold my interest. A weaker episode, but not the worst or anything. And some of the dream/madness sequences were really good animation.