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Deutscher Supplement Verlag GmbH provides publishing services, selling TV listing magazines. The core of the company is its TV supplement rtv, which publishes TV program listings and highlights guide that is inserted into daily newspapers. Subsidiary TV Information Services (TVi) provides TV and radio programming information to newspapers, magazines, and Internet providers. TVi also supplies editorial content to newspapers and magazines. Its customer magazines unit publishes special interest magazines that include Motor & Reisen, Clivia, and TV Karstadt. The company is headquartered in Nuernberg, Germany.