The episodes showing with a title ABC World News Tonight With David Muir' as opposed to a date are ones not yet sequenced/processed by our EPG provider
When we do not get an Original Air Date in the schedules from our EPG provider, we currently default to 1st January - Unfortunately that causes an issue with the setting Keep x unwatched episodes as the 1st January original air dates would appear to be the oldest and get purged first.
So whilst there is the risk of getting a 1st January Original Air Date slipping through, the advice is to set the Keep unwatched episodes setting to All Episodes
https://support.plex.tv/articles/226074728-setting-up-recordings/
