An imaging device includes phase difference detection pixels. A message is received from a user requesting that particular content be provided from the first home network to a particular content rendering device or content storing device of the second home network. A list of advertisements which correspond to that rating is displayed to the user, who may then select a desired advertisement from the list. In a second open state, the membrane is rolled up away from the port such that light directed at the port impinges on the port. In one exemplary embodiment, the unique message comprises an in-band signaling message, such as a message inserted in a program map table in an MPEG packetized signal.