Ending several months of rumors, FX has now officially announced the launch dates for its returning series Sons of Anarchy, It's Always Sunny in Philadelphia , and nip/tuck . Season Two of Sons of Anarchy will kick off on Tuesday, September 8th at 10 pm ET/PT. The second season of the Charlie Hunnam-led series will feature guest turns by Alan Arkin and Henry Rollins. It's Always Sunny in Philadelphia returns for a fifth season of madcap adventures on Thursday, September 17th. The twelve-episode season will air Thursday nights at 10 pm ET/PT. nip/tuck returns for its sixth and penultimate season of ten episodes in October (specific date TBA). Guest stars next season will include Vanessa Redgrave, Rose McGowan, Mario Lopez, Barry Bostwick and Gilles Marini. Additionally, the network will also launch an as-yet-unannounced new comedy series as a companion to It's Always Sunny on Thursday evenings. (I'd assume, then, that the poorly-received Testees won't be back fo...