2016-06-08, 04:03
Nevermind, I finally use the "legacy" repo with:
sudo apt-add-repository "http://dl.bintray.com/dreamcat4/ubuntu master main"
..and it has worked to install TVheadend 4.1
sudo apt-add-repository "http://dl.bintray.com/dreamcat4/ubuntu master main"
..and it has worked to install TVheadend 4.1