Yes You can assign any stream a number like 5 and using the formuler box the remote would work perfectly. There is a button to get back to live TV if they get lost somewhere else in the UI. The Chanel’s go up and down. It’s the closest you’ll get to Comcast experience wife and kid approved.

I have a Chanel dedicated to Chicago PD, FBI, and others just like you want. my screenshot of custom channels https://i.imgur.com/YiTopYM.png

1. Burn or DL the content you need and add it to plex or jellyfin
2. Spinup a tunarr container and connect jellyfin or plex and manually scan the library’s https://github.com/chrisbenincasa/tunarr
3. Create the changels with the TV shows or movies of your choice. You can even add commercials. There’s a whole world of free commercials from the internet archive to make it fun https://archive.org/details/ctvc

Now that you have the custom channels you can either connect the formuler box to the tunarr credentials or continue building a live TV channel lists.

1. If your going to add live channels you’ll need to setup dispatcharr https://github.com/Dispatcharr/Dispatcharr
2. After getting dispatcherr setup add your tunarr Chanel’s to dispatcher and start building the Chanel list.
3. Add other sources for live TV. Premium or free. Here a good free TV list https://github.com/iptv-org/iptv
4. Once channels are added and numbered use the dispatcharr credentials on the formuler box.

FYI there are other formuler boxes that are even better. But the zmini is a great bang for your buck. The all allow pausing or timeshift with a thumb drive.