[Unit]
Description=Mouse wiggle every time MythTV starts playback

[Service]
ExecStart=/bin/bash -c 'journalctl -t mythfrontend -t mythfrontend.real -f | grep --line-buffered "Entering main playback loop" | while read line; do echo mouse-wiggle; /root/mouse-wiggle/mouse-wiggle; done'
Restart=always

[Install]
WantedBy=multi-user.target