Thanks for reaching out. While you can't block a channel from appearing in your recommendations, you can always manage it by selecting 'Not Interested'. Also, here's more on how you can improve video suggestions: https://goo.gl/UZ23BD
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
Thanks for reaching out. While you can't block a channel from appearing in your recommendations, you can always manage it by selecting 'Not Interested'. Also, here's more on how you can improve video suggestions: https://goo.gl/UZ23BD