Mark tv show as seen?

I’m trying to use the cli for flexget series. I see the database results, and there are some shows that I would like to clean up and mark as seen. For example:

Years and Years 2 eps behind │ - │ S01E02 │ 397d 7h │ 720p hdtv h264 │ ep

How do I mark this series as up to date, all episodes seen?

The easiest way, is to set the ‘begin’ episode to the next episode you haven’t seen yet. If the series is totally over, I’d remove it from your config.