. "Off the air"@en . . . "1989Z"^^ . . . "CKO was a Canadian radio news network which operated from 1977 to 1989. The CKO call sign was shared by twelve network-owned stations, as listed below.The network was owned by Canada All-News Radio Ltd. AGRA Industries was originally a 45 per cent partner in the network, but by 1988 it was the sole owner. David Ruskin was the network's founding president."@en . "CKO"@en . . "1977Z"^^ .