User-Centric Personalized IPTV UbiquitOus and SecUre Services (Up-TO-US) project provides nomadism and personalization in IPTV operated services. This paper proposes a novel architecture for nomadism combined with an extensive game to enforce identity exposure when a user accesses his/her services from outside the home domain. The goal of the game is to minimize the personal information divulgation outside his/her domain. The proposed algorithm is implemented within a nomadic architecture. For each client, our algorithm can customize the Electronic Program Guide (EPG) in a contextualized way. We analyze two main use cases in nomadic situations: local nomadism and inter-domain nomadism. All implementations are hypertext Transfer Protocol (HTTP) standard-based for compatibility issues with all Internet Protocol Television (IPTV) platforms. I. INTRODUCTION The advance in Internet Protocol Television (IPTV) technology enables a new model for service provisioning by moving from traditional broadcaster-centric TV services to a new user-centric TV model. This new model allows users not only to access new services and functionalities from their providers, based upon their profiles and contexts, but also to become active parts in the content personalization through contributing in building their dynamic profiles and their privacy. This IPTV model is promising in allowing low cost services for end-users and a revenue system for broadcasters based on personalized advertising methods, as well as new business opportunities for network operators and service providers. A. UP-TO-US Project The objective of the UP-TO-US project [1] is to elaborate, to prototype, and to evaluate an open European solution allowing IPTV services personalization over different IPTV systems (having different architectures and belonging to different network operators and service providers). The project assures content personalization according to each user context and the context of his environments (network and devices), while preserving his privacy, as shown in Figure 1.