The Pac-12 conference is seeking a 10-year deal worth $220 million a year, plus a commitment to launch a regional sports network, people with knowledge of the talks say. Start-up costs for such a venture would likely run in the neighborhood of $100 million, most of which would come from the media partner. Negotiations are likely to conclude in the next few weeks. Executives including Comcast CFO Michael Angelakis, Matt Bond, who oversees content distribution, and Jon Litner, who leads Versus and the company's regional sports networks, see a deal as a potential rainmaker that will improve the Versus sports network and allow the company to collect carriage fees for a Pac-12 network, according to people familiar with the matter. They also fear watching another company launch a Pac-12 network and then being forced to pay to include it on their cable systems, these people said.