How do I delete my watched recordings on YouTube TV?

To delete watched recordings on YouTube TV, one must navigate to the 'Library' tab where all of their recorded content is stored. Within the 'Library', locate the show or event that contains the recordings you wish to remove. On accessing the specific program, a list of recorded episodes or clips will be presented. One can then click on the three-dot menu next to the episode or recording in question and select "Remove from library" to delete it from their watched recordings. YouTube TV updates the actions immediately, and the selected recording will no longer be available in the user's library.