
Testing new ways to offer viewers more context and information on videos
YouTube is ramping up an experiment with a new feature allowing people to add helpful notes to content.
Starting today, we are testing an experimental feature to allow people to add notes to provide relevant, timely, and easy-to-understand context on videos. For example, this could include notes that clarify when a song is meant to be a parody, point out when a new version of a product being reviewed is available, or let viewers know when older footage is mistakenly portrayed as a current event.

This is going to be FUN.