with (k)ubuntu 15.10 it is not possible to look television or see a video. all is flickering. Same kaffeine version with (k)ubuntu 14.04.3 works fine. Platform is Intel i5 with hd4600 grafics.
The Kaffeine backend that plays video has been changed along the time. It used to be mplayer and xine. On newer versions (1.3.x), it uses libVLC. On the current version (2.0.1), there were some major changes, with the port to KDE5, and some of such changes can solve your flickering issue. So, could you please test the upstream version and see if it works? The README file contains instructions about how to compile it. You can find it at our git repository: https://quickgit.kde.org/?p=kaffeine.git As this BZ seems to be related with a too old version, I'm closing the bug. If you find problems with version 2.0.1, please re-open.