Perhaps this is something perhaps nothing and a wild goose chase. I looked at the video "216 numbers" and noticed at 4minutes and 10 seconds and image appeared for a split second, what was odd was the line at the bottom, looked broken up. The line did not appear on the image at 4 minutes 8or 9 seconds and was also no visible after the 4min and 10 seconds. It looked like a morse code. So I decode it to = FRHNLNI ITS A MD5 type encryption. A further search got me to this http://rachid.dk/scripts/php/md5.php?q=e8787fe8e9d9f070dba42cfadbe6f0a5 I'll post the image you decide. Odd though.
Allegory of the cave.