Traditionally, the established networks have paid local stations a fee to carry their programs.
We have an established network of country offices with 500 staff in 13 countries.
There is no national established network of roadside emergency service.
A second generation immigrant can also make use of established networks in the coethnic community.
The tickets already sold have gone to an established network of football fans, Rothenberg said.
Lifetime is a much more established network, available in more than 85 million homes.
And Fox, for the first time, beat one of the established networks in the 18-to-49 age group.
The established networks all built up their sports divisions gradually.
For the more established networks, he said, "if you just stay still and don't change your programming mix, you're guaranteed to lose audience every year."
It is here that the established networks may face yet another danger.