the leading time zone is significantly ahead in time than the lagging time zones such as greater than twelve hours ahead in time in one embodiment this invention involves a system and method to reduce transmitting bandwidth by removing duplicate or repeating videos in an alternative embodiment this invention works in a different network broadcasting infrastructures such as unicast and multicast and has the capability of examining the network infrastructure of each broadcast client destination to optimize transmission rate fig4 illustrates an exemplary iptv network 100 in accordance with one embodiment of the invention a broadcasting source 110 is a live feed from a broadcaster such as a satellite a commercial cable network or an on air television station a broadcast encoder server 120 inputs either the analog television signal or high bit rate digital stream from the broadcasting source 110 and outputs a digital video and audio stream that is compressed and formatted for delivery over the network 100 broadcast streaming server 130 is a media server that hosts a number of encoded broadcast streams for a large number of clients 160 such as a set top box 160 1 computers 160 2 and or televisions 160 3 in one embodiment the time zone of the broadcasting source 110 is hours ahead of the time zone of the clients such as eight.