Adding Telly to Plex

1. Once telly is running, you can add it to Plex. Plex Live requires Plex Pass at the time of writing
2. Navigate to app.plex.tv and make sure you're logged in. Go to Settings -> Server -> Live TV & DVR
3. Click 'Setup' or 'Add'. The Telly virtual DVR should show up automatically. If it doesn't, press the text to add it manually - input THE_IP_WHERE_TELLY_IS:6077 (or whatever port you're using)
4. Plex will find your device (in some cases it continues to load but the continue button becomes orange, i.e. clickable. Click it) - select the country in the bottom left and ensure Plex has found the channels. Proceed.
5. Once you get to the channel listing, telly currently doesn't have any idea of EPG data so it starts the channel numbers at 10000 to avoid complications with selecting channels at this stage. EPG APIs will come in the future, but for now you'll have to manually match up what telly is telling Plex to the actual channel numbers. For UK folk, Sky HD is the best option I've found.
6. Once you've matched up all the channels, hit next and Plex will start downloading necessary EPG data.
7. Once that is done, you might need to restart Plex so the telly tuner is not marked as dead. Generally, when you make any changes to your telly configuration, it is safest to restart Plex.
8. You're done! Enjoy using telly. :-)