There is a bit of sex in Black Sails that probably would keep it off of cabel tv unless you pony up for the Starz movie package.
Not sure how many seasons there's been but its not that many. Its been good, not as good as Hell on Wheels but good nonetheless. I can see owning the complete series of both of those, they were both entertaining. I really liked Anson Mounts character, x confederate, had his home burned down and land destroyed during the war and just moved west with the Railroad. Must've been a lot of Rebels that left the South when they returned to nothing. you don't see them played in movies or tv much, john wayne in the searchers, maybe nick adams in the Rebel, but not really.