This work analyses the points of weakness of the current interaction paradigm for the TV user and proposes a new model based on interaction inside a 3D information-rich environment. We introduce a new artifact, the time-pillar, to populate the 3D environment; we propose it as a mark-up of specific TV channels, representing the basis of a new interaction metaphor that allow the user to explore and to summarize the contents of the TV domain. If we con- sider the digital TV domain, another important issue for the average user it is the difficulty to find information related to all the available channels. Therefore we propose, as a further step, a cooperative approach that uses convergence between different media (TV, personal computer, Internet) to share TV information among different subjects (broadcasters, groups of interest, private users).