Stremio works on android TV. I use the Stremio + RD + Torrentio setup, it's great for essentially mimicking the Netflix experience in that you can sit down and browse movies/series, watch trailers then just select something to watch right then and there. It's intuitive so my family can use it easily.
If you mainly watch movies on your PC/laptop then there may not be that much material gain from the above setup - but it is a good option if wanting to fully replace the Netflix-esque experience.
That's more complicated than Stremio to setup though, and still requires you to download the movie/show before watching, correct? Stremio just requires adding Torrentio in the app and linking your RD account once - then it's easy times.
Listen, I think Jellyfish is great - but it really is a horse's for courses scenario. The Stremio + Torrentio + RD triad just works for a lot of people that need a wife proof solution (pardon the sexism) and don't want to store all this content.
Out of interest, does Jellyfish have ability to list Netflix, HBO catalogues? That's a convenient add-on in Stremio where you can essentially browse a specific streaming service's catalogue, or at least their most popular items.