Sorry for the confusion, this feature is still rolling out to everyone–if you don't have it yet, you should soon! Once it's available, you'll see the option on all the new videos.
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
Sorry for the confusion, this feature is still rolling out to everyone–if you don't have it yet, you should soon! Once it's available, you'll see the option on all the new videos.