The copyright fees for the original works of TV series usually varied according to the production company, the original author, the copyright agent, and other factors. Generally speaking, the calculation method of the copyright fee for the original work of a TV series was: copyright fee = original adaptation fee + publicity fee + production fee + other expenses. The cost of adapting the original work referred to the cost of adapting the original work into a television series, including the cost of deleting, adapting, and adding plots to the original work. The publicity expenses referred to the expenses used to publicize and promote the original works of the TV series, including TV advertisements, online publicity, distribution, and promotion. Production costs referred to the production costs of the TV series, including the salaries of the actors, costumes, props, and other production costs. Other fees may include copyright agency fees, litigation fees, taxes, and so on. It should be noted that the exact amount of copyright fees for the original work of the TV series may vary depending on the adaptation method and the content of the original work. In addition, the copyright fees for the original works of the TV series may also vary depending on the production company of the TV series.