I’ve been working my way through the old 1940s Batman movie serials, which I put on my Xmas Amazon wish list in an excess of enthusiasm over good sense. I can’t say I recommend them except as an appreciation of history and of kitsch. The big enemy is a spy of Hirohito and very “yellow peril”-ly. And it’s from way before the Batman was expected to have any muscle tone whatsoever; as silly as Adam West looked, this guy is way worse.
That being said, it has a certain amusement value. If you want to rent a disk on Netflix, I’d say it’s worth that, at least.