This screen brings up a YouTube Video in a simulated browser window.
From here you can search for YouTube video's and play them. If you find the video you want to keep, just click on the Save and Close button. The URL for the video will be saved in the record that you called the YouTube video from. If the record already had something in it, the video will play automatically (assuming it it still on the internet). Otherwise, the YouTube home screen will display.
This is basically just like a browser, but specific to play and find YouTube Video's.