Chromecast Time changed events

I’m trying to setup a rule that checks the time left of an episode in chromecast and when the episode is over it stops playback and turns off the TV (so that I can simply press a button to allow the kids to see one more episode, but not more…). To make this work I need to see the time left, so I set the update interval to 10s, but now my event log is filled up with “current time changed” events from Chromecast. Is there any way to get a good time update but still not fill the log?