This paper focuses on user-centric mobileTV service considering the users' consumption style, the cost reduction of network resources and the enhancement of End-Users' Quality of Experience (QoE). We consider a nomadic access scenario where each user is able to access his mobile TV content AnyTime, AnyWhere and from Any Device (ATAWAD), considering the eMBMS (Evolved Multimedia Broadcast Multicast Service) diffusion. In multicast TV delivery, clients join/leave the multicast TV source of channels according to their requests. However, during Nomadic Access (NA), the multicast tree has to be reconstructed according to the new demands. This paper introduces a solution that adapts the multicast delivery for mobileTV service through optimizing the tree structure of multicast nodes in a dynamic manner according to the different context of the user and the network. The proposed solution optimizes the investment cost (CAPEX) of multicast sources (streaming points) and opens the way to an enhancement of the Quality of Experience (QoE) of End-User.