Regulation of value-added services sold together with electronic communications services and/or linear audiovisual media services. We prepared a basic concept and then a professional proposal and analysis for the NMHH, in which we examined how our earlier proposal for the regulation of value-added services sold together with electronic communications services could be extended to the regulation of value-added services sold together with linear audiovisual media services. The basic concept places value-added services in the regulatory system of media regulation, electronic communication regulation, information society-related services, and presents possible basic sales models through examples. The detailed proposal describes the typical services, domestic and international practice and jurisprudence, the related regulatory areas, the basis, purpose, scope, tools, concepts and justification of the regulation.