had mezzmo on a previous Samsung tv and had no problem with it. but decided to invest in a newer UE43NU7470 UHD Samsung tv and mezzmo will not show up on source ,I use a wired LAN connection which seems to be working fine. I have checked my AVG antivirus and that is letting mezzmo through its firewall. As anyone else had this problem and can anyone solve this. I have switched the firewall off and had no luck.