Jon Hamm, Connie Britton Jon Hamm, Connie Britton

Mad Men and American Horror Story topped the Primetime Emmy Awards nominations Thursday with 17 each, while a slew of freshmen faces enter the field.

Mad Men will aim for an unprecedented five-peat in Best Drama Series, which would also give it the most wins in the category. It is up against Boardwalk Empire, Breaking Bad, Downton Abbey, Game of Thrones and Homeland.

Downton and miniseries Hatfields & McCoys followed with 16 nods, while breakout hit Homeland scored eight, including nods for leads Damian Lewis and Claire Danes.

Jimmy Kimmel to host Emmy Awards