SEASON PREMIERE: Last season, this Steven Soderbergh TV series about a highly paid escort offering her clients the illusion of emotional closeness – a so-called “girlfriend experience” -- was focused on one character, played by Riley Keough, who pretty much enjoyed her work, though not always the clients or circumstances. This season, the one-hour show tells two stories in each installment, focusing on two different women. And though Soderbergh remains the executive producer, the show-runners from last season, Amy Seimetz and Lodge Kerrigan, are staying together, yet splitting up, for Season 2. Kerrigan is presenting (and writing and directing) “Erica & Anna,” the continuing story of an escort and a Washington power player, both of whom are confident, manipulative women, while Seimetz does the same with “Bria,” in which a former “girlfriend” to an accused murderer fashions a new identity under the witness protection program – then clandestinely begins fashioning another. Anna Friel, from ABC’s Pushing Daisies, is the biggest star involved here, but the bifurcated nature of this season’s shows make The Girlfriend Experience worth experiencing – at least to sample.