[Android] How to Play Videos in Official YouTube App with Explicit Intent

A working Intent for playing videos in the official YouTube Android app using the vnd.youtube: URI.

How to fix: Refused to display https://www.youtube.com/watch?v=xxx in a frame because it set X-Frame-Options to SAMEORIGIN.

Putting a YouTube watch URL straight into an iframe src triggers an X-Frame-Options error — swap it for the embed URL.

How to share videos with specific people using YouTube and Google+

Record with QuickTime Player, upload to YouTube as Private, then share via Google+ with only the people you want.

How to Change YouTube Video Upload Default Privacy Settings

Change YouTube's default upload privacy from Creator Studio so new videos start as Public or Private.