I'll give you an entirely off-the-wall suggestion that your mother may like even more than you, and that's
Nodame Cantabile. You'll have to watch the stream at Crackle, though. I don't know whether that is convenient or not. But it does have English dubbing, the little of which I've listened to isn't bad. (This show was never released on DVD in North America, so this is the only place where you can see the dubbed version. There are "fansubbed"
versions as well.)
I'll add two more suggestions that come from the supernatural adventure genre. One is the classic
Twelve Kingdoms, while the other is
Seirei no Moribito. Both of these have dubs, and both feature strong female characters as the protagonists. You can watch
Moribito for free at
Crunchyroll with subtitles; for the dubs, you'll have to buy or rent the DVDs.
Twelve Kingdoms is not streamed anywhere that I know of.