https://www.gonnageek.com/show/on-the-bubble/
In 1893, Arthur Conan Doyle cancelled Sherlock Holmes and instigated the first known save-our-character fan campaign.
Links: https://www.psychologytoday.com/au/blog/the-science-of-fandom/202401/save-our-show-why-fans-fight-back-when-shows-are-cancelled
Music: https://youtu.be/gDe2lPA2jfI?si=BtB-FRI8VOP4kxhd (go give these guys a Thumb Up on YouTube).