If you are technically inclined you can run the following docker container and feed it into Channels DVR via Custom Channels
The docker container just generates a standard m3u file, which can also be used with Plex, Emby, TVHeadend, Kodi, VLC and many other pieces of software.
If Tablo added a similar endpoint to their firmware, the docker container would not be needed, and a large variety of media center could interface Tablo tuners directly.