DirecTV (NASDAQ: DTV) has said it's not interested in an arbitration process to work out a carriage dispute that has kept 70 percent of the L.A. market blacked out from Dodgers games this season. Still, Rep. Brad Sherman (D-Calif.), one of six lawmakers who originally proposed such a process in a letter to the Federal Communications Commission, keeps trying to sell the plan. On Monday, Sherman offered up more details, noting that DirecTV would have immediate access to the new SportsNet LA while the arbitration process was unfolding. He also said arbitors would have access to comprehensive research on nationwide regional sports network pricing. That might expose DirecTV's assertion that SportsNet LA's backer, Time Warner Cable (NYSE: TWC), vastly overpriced its new RSN when it overpaid the Dodgers with $8.35 billion over 25 years. Variety has a complete report here.