Here’s a tip for cable networks everywhere: If you’re looking to launch an expensive period drama with fantasy elements, don’t do it at the same time HBO is debuting Game of Thrones. That’s the lesson Starz learned the hard way with Camelot, its retelling of Arthurian legends, which the network today declined to renew for a second season. Camelot opened with solid numbers but couldn’t sustain buzz opposite its highly hyped HBO rival, and its high price tag made further episodes a tough bet. Still, we think the show’s in-demand stars Eva Green and Jamie Campbell Bower will land on their feet just fine. [THR]