Scrub did a good job keeping the server around for this long. Honestly I think CloudFlare was the biggest problem. https://cytu.be/ is the closet thing we'll get to another ScrubTV for the time being. It's not perfect but it gets the job done for now.
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Maybe a decentralized community effort will be the answer. We can run live-streaming servers on cheap Virtual Private Servers and use rclone to mount cloud drives with the videos and ffmpeg (rtmp) to feed the video files into a live streaming server.
The only major roadblock I see with this is bandwidth and data caps so we will need to find a way to overcome that. Since the videos are not hosted on the servers themselves there will technically be no legal issues.