As a video's watch time and the channel's overall watch time is interrelated, deleting videos will result in loss of the channel's overall watch time. Hope this clarifies.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
As a video's watch time and the channel's overall watch time is interrelated, deleting videos will result in loss of the channel's overall watch time. Hope this clarifies.