Ben McKenzie (“Southland”) plays “Batman’s” Commissioner Gordon when he was just a rookie cop in the new drama created by Bruno Heller (“Rome”), and the buzz is deafening. Ken Burns’ seven-part, 14-hour documentary profiles three of the most influential Americans of the last century, Presidents Theodore and Franklin Delano Roosevelt, and the latter’s wife, Eleanor. An upper-middle-class African American dad worries that his family is losing its identity when his son wants a bar mitzvah and to join the high school field hockey team. Created by Peter Nowalk and produced by Shonda Rhimes, “Murder” stars Viola Davis as a tough law professor and defense attorney, who is powerful but flawed, much like Olivia Pope and other fascinating women in Rhimes’ shows. The Affair: A he said, she said dramatic study of marital infidelity, created by Hagai Levi and Sarah Treem, and starring Dominic West, Ruth Wilson, Maura Tierney and Joshua Jackson. Based on the Hellblazer comic books, the series stars Welsh actor Matt Ryan as modern-day exorcist John Constantine, who is ready to do battle against a coming gathering of demons out to wreak havoc around the world. Jessica Lange’s fourth and final season on Ryan Murphy’s delicious anthology will find her playing a German-born manager of a freak show.