Mercy Street

This series began with real promise - an American period drama along the lines and quality of what Masterpiece has imported from across the pond. And for the most part, the first season delivered.

But the second season devolved into a Grey's Anatomy-style soap (complete with the annoying underscore) that treated the horrors and suffering of the Civil War as a backdrop for quirky characters and their high jinks. The psychological drama never reached deeper than a wading pool.

The real mercy in Mercy Street was putting it out of its misery at the end of the second season.