I am running Fedora29 now with a recently installed kernel (5.0.4-200) and had successfully installed and run my MythTV application under kernel 4.2.15-200.
I am using the installation method descibed in https://github.com/tbsdtv/linux_media/wiki and testing the install with the commands in https://www.linuxtv.org/wiki/index.php/ ... stallation. In the latter, the first command run after reboot dmesg | grep -i saa716 responded with nothing, meaning that the installation of the drivers had clearly NOT worked.
How do I resolve this issue? Do your installation instructions need updating (I guess if they do, it will be because of the new kernel).