Jamie Kellner, who made his name as the only exec ever to create two broadcast networks — Fox and The WB — died Friday in Montecito, Calif. He was 77.

Jamie Kellner, who helped expand broadcast television by creating Fox and the WB network and launching shows such as "Married…With Children" and "Dawson's Creek," has died at 77.

Jamie Kellner, a TV executive behind the launch of Fox and The WB broadcast networks, has died. He was 77.

Jamie Kellner, the charismatic and crafty executive who expanded the broadcast television landscape by helping hatch the Fox and WB networks in 1987 and 1995, respectively, had died. He was 77.

Jamie Kellner, the influential television executive who helped launch both Fox and The WB, has died, according to media reports. He was 77 years old and died Friday at his home in Montecito.

Jamie Kellner, who expanded the broadcast TV landscape by helping hatch the Fox and WB networks in 1987 and 1995, respectively, has died. He was 77.