Probably very little, other than supplying video for backgrounders, or acting as a feed point and remote studio for out of town reporters. The network sports operations are pretty self-contained. The home market stations pick up the game feed the same way as everybody else.Sometimes local staffers are added on as freelance production assistants, but I'm not sure that is as common as it used to be. Pay was often crappy for the amount of hours you put in on a game. It did get your name "out there", though.The various RSN's tend to use more freelancers these days.