You're not gonna like this but the Computer Fraud and Abuse Act in the US is so ridiculously broad that damn near anything that you do to/in a network that the owner doesn't permit could be illegal.
Change "random(0)" to "random(time(0))" so the videos are less easily removed by a bot. time(0) is the number of seconds from January 1, 1970 at midnight, so the random seed keeps changing. It's still be black and white noise but not the same noise as anyone else.
You're not gonna like this but the Computer Fraud and Abuse Act in the US is so ridiculously broad that damn near anything that you do to/in a network that the owner doesn't permit could be illegal.