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IPTV is defined as multimedia services, such as TV, video, audio, text, graphics, and data, delivered over IP-based networks managed to support quality of service (QoS), quality of experience, security, interactivity, and reliability. Mobile IPTV extends those services to mobile networks. The authors discuss mobile IPTV standardization's status, related approaches in the field, and technical challenges to enhancing mobile IPTV services. Given the critical role of QoS in the technology's widespread adoption, the authors also propose an efficient signaling scheme to support QoS for seamless mobile IPTV services.