AMC Global Media is known for high-level dramas such as “Mad Men,” “Dark Winds” and “Better Call Saul.” Now the peak-TV purveyor thinks it can make a scene by playing sports. The company, which operates AMC, Shudder and BBC America, among other outlets,has no massive deal ready to unveil that will put it in cahoots with the NFL or Major League Baseball. But it is poised to dig more deeply into sports-themed scripted and documentary programming, eager to win viewers over to the one thing that