What goes in the Common Interface slot on the TV

What goes in the Common Interface slot on the TV common interface slot A CI slot is a small expansion slot, usually located on the back or side of the TV, that allows you to plug in a decoder and access encrypted common slot common interface slot does on the back of my TV Would I be right in thinking you could add specific viewing cards to it lets say for

common slot what is a common interface slot ? and whats it doing on a plasma ? answers on a postcard please or post below cheers

common interface slot airtel In this case the Common Interface in the Samsung TV What it does for the end user? In essence, the concept of Common Interface allows for Common Interface 5V Only · £ Est delivery dateEst delivery Thu, Jul 11 ; New Genuine Samsung Common Interface Card Adapter 3709-001791 CI 5V CAM SCAM1A · £