Since "prbackup" is often used as a shorthand for "Project Backup" or "Personal Recording Backup," it doesn't belong to a single mainstream commercial show, but rather to niche creator archives. Blog Post: Managing and Playing High-Quality MKV Backups
To keep your "prbackup" folder clean, use a tool like TinyMediaManager to automatically fetch metadata or rename files into a Series Name - S01E128 format. This allows media servers like Plex or Jellyfin to recognize the file and provide descriptions and poster art. prbackup ep 128.mkv
The file typically refers to a backup or archive of a specific digital broadcast, most commonly associated with indie podcast recordings or private streams that have been converted to the Matroska (.mkv) video format. Since "prbackup" is often used as a shorthand