Netflix sadly loses some of its back catalog every month, and for December 2025, we'll see The 100, Arrow and Supernatural all leaving the streamer.
In a nutshell, these monthly changes all come down to licensing agreements. Typically, third-party content hosted on Netflix is there for a set amount of time, with films and TV shows either returning to their parent company or appearing on another streaming service altogether. Our three shows in question all originally aired on The CW network, so there's clearly a company licensing agreement that's about to expire here.
