If UK accents are OK, I would also suggest "A discovery of Witches" on Amazon
I'm mid 40s and she's early 70s. I still feel uncomfortable watching sex and nudity around her. lol But I also know she doesn't care for it or a lot of bad language.Can I ask how old you and your mom are (ish). Reason I ask is that I'm in my 40s and mom is in her 70s, so things I would feel comfortable seeing with her now is different than when I was a teen or in my 20s. Also, my mon would likely not watch any of this stuff, like my wife.
Maybe Umbrella Academy, but I think there is more strong language and lots of gore. I like the 80s songs.
I think she's seen the newer alien doctor one (can't remember the name) and liked it, but I don't get Syfy on my cable plan so if it not streaming we're out of luck on that.
It's old, but Stargate SG-1 might be good.My mom recently moved in with me. We've been watching Lost in Space and The Book of Boba Fett together. Any genre shows that are mom friendly (mild language, no sex or nudity) you can suggest would be helpful. She has trouble with non American accents. She doesn't really care for superhero shows. We will certainly watch Strange New Worlds when it starts. I don't have Apple TV + but I have the other streaming services.