'Ray Donovan': Another flawed hero for your Sunday nights

The first episode of Showtime's bracing new Sunday night drama, "Ray Donovan," is a remarkable achievement in piloting -- tight and tough and almost flawlessly conceived and performed. Showtime's proud enough already of "Ray Donovan" that it put the episode online for all to see several days ago as an enticement to those who still don't subscribe to the channel. If nothing else, the show is another steady shot across HBO's bow.