A multicast handover system in a multi-carrier communications system, the multicast handover system comprising: a media provider manager configured to: determine, in response to receiving a content request from a client device of a plurality of devices disposed in a transport craft having a sequential transport path through first and second carriers of the multi-carrier communications system, that the content request is for a media channel offering; establish a plurality of multicast groups comprising a first multicast group of the media channel offering for the first carrier, and a second multicast group of the media channel offering for the second carrier; and notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the second carrier; and a multicast server, in communication with the media provider manager, configured to: direct multicast delivery of the media channel offering to the transport craft in accordance with the first multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the first carrier; and direct multicast delivery of the media channel offering to the transport craft via the second multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the second carrier, wherein the media provider manager is configured to notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the first carri er. a media provider manager configured to: determine, in response to receiving a content request from a client device of a plurality of devices disposed in a transport craft having a sequential transport path through first and second carriers of the multi-carrier communications system, that the content request is for a media channel offering; establish a plurality of multicast groups comprising a first multicast group of the media channel offering for the first carrier, and a second multicast group of the media channel offering for the second carrier; and notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the second carrier; and determine, in response to receiving a content request from a client device of a plurality of devices disposed in a transport craft having a sequential transport path through first and second carriers of the multi-carrier communications system, that the content request is for a media channel offering; establish a plurality of multicast groups comprising a first multicast group of the media channel offering for the first carrier, and a second multicast group of the media channel offering for the second carrier; and notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the second carrier; and a multicast server, in communication with the media provider manager, configured to: direct multicast delivery of the media channel offering to the transport craft in accordance with the first multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the first carrier; and direct multicast delivery of the media channel offering to the transport craft via the second multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the second carrier, wherein the media provider manager is configured to notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the first carri er. direct multicast delivery of the media channel offering to the transport craft in accordance with the first multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the first carrier; and direct multicast delivery of the media channel offering to the transport craft via the second multicast group, in response to receiving requests for the media channel offering while the transport craft is serviced by the second carrier, wherein the media provider manager is configured to notify the transport craft of the first and second multicast groups prior to the transport craft being serviced by the first carri er.