This Recommendation specifies the functionalities of virtualized IPTV terminal device (IPTV TD). Virtualized IPTV TD divides the IPTV terminal function (ITF) into 3 parts: physical terminal (PT), function platform (FP) and logic subscriber link (LSL). It identifies key features, functional components, service procedures of virtualized IPTV TD. Functionality partition of physical terminal (PT), function platform (FP) and logic subscriber link (LSL) is also included in this Recommendation. With this Recommendation, IPTV service providers are able to deploy new IPTV services with lower costs of IPTV terminals and in a more flexible way by following the architecture of virtualized IPTV TD defined in this Recommendation.