it seems that there is some issue with the update for mythtv:
Setting up pluto-mythtv-player (18.104.22.168.15041030526) ...
ln: failed to create symbolic link `/usr/lib/libXmu.so': File exists
dpkg: error processing pluto-mythtv-player (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)