GSE Smart IPTV

I use GSE with OSX and iOS. It's full of features and much lighter than Kodi. Also, you can configure many playlists (local and remote) instead of just one.

For tvOS (Apple-TV 4), I use iPlayTV. Less elaborate features but it has a user-interface that works very nicely with the Apple-remote.

https://fastotv.com have free MacOSX player

You could try r/thumpertv

I'm pretty happy with using Kodi, though it's not as nice as some dedicated apps

https://itunes.apple.com/us/app/tv-streams-easy-way-to-watch/id1181863013 it’s pretty simple and it works for not so large playlists. (Disclaimer: I’ve made it 😅) free to try and experiment, you can add up to 10 channels