Methods and apparatus are described for synchronizing a media presentation on a plurality of wireless transmit/receive units (WTRUs). A media session may be replicated from a first WTRU onto a second WTRU. The second WTRU replicates the presentation of the media program from the first WTRU at least in part by receiving a networked bookmark from an Internet Protocol (IP) Multimedia Subsystem (IMS) network, wherein the networked bookmark comprises a suggested presentation offset that indicates an offset in time from a bookmark-created time to a bookmark presentation time at the first WTRU; the second WTRU determining a second-WTRU-presentation offset based at least in part on the suggested presentation offset; and the second WTRU presenting the media program with the determined second-WTRU presentation offset from the beginning of the media program.