Yet another tvheadend live-TV client for desktop/laptop. This one is a very minimal single-file Python/tkInter app that uses mpv to play live tvheadend streams. The only external requirements are the the Python 'requests' library and the command-line 'mpv' video player. No building or installing is required. It probably only works on Linux/Unix (maybe macOS).
https://github.com/GrantEdwards/tvhc
When started, it shows a program grid:

Left-clicking on a cell in the EPG shows program details:

Clicking on a program or station label starts mpv:
