Tariff indices for TV formats refer to a system of measuring and comparing the value and popularity of different television show formats. These indices take into account various factors such as audience ratings, advertising revenue, and international distribution rights to determine the financial worth of a particular TV format. This information is used by networks, production companies, and advertisers to negotiate fees and royalties for the use of these formats. Tariff indices for TV formats play a crucial role in the global television industry, providing a standardized method for evaluating the success and profitability of various shows.