TV highlights: 'American Horror Story: Freak Show' takes a final bow

On the already renewed ratings smash hit "Empire" (Fox at 9 p.m.), the Lyons get a taste of what life would have been like in Philadelphia if Lucious hadn't hit it big in the music biz. "NOVA" (MPT and WETA at 9) chronicles the mass effort to secure, raise and salvage the Costa Concordia cruise ship, which capsized off the Italian coast in 2012.