AltspaceVR has full-screen beaming support for YouTube, Netflix, and Twitch.tv. This means that when you use these sites to beam a video, your private display will automatically close and the video will appear full-screen on the public display. Sites other than the three mentioned above do not have this feature yet.
If you find one of the three sites above fails to go full-screen, you may have attempted to beam the video during an ad, or beamed a video to the screen at the exact same time as another user. In this case, simply beam the home gallery to the public display, then beam your desired video once again.
Still having trouble? Click here to send a Support Request.