Did you forget “Unforgettable?” After a really, really long hiatus, Carrie Wells (Poppy Montgomery), the NYPD detective with a remarkable memory, returns for a second season of crime-fighting. 8 p.m., CBS.

Apparently there’s more to being a WWE wrestling diva than choke holds and flying drop kicks. The series “Total Divas” goes behind the scenes as the ring queens grapple with their demanding schedules and personal lives. 10 p.m., E!

“Oprah: Where Are They Now?” has our host paying a visit to her half sister to celebrate her 50th birthday. Also: Chats with Denise Richards and the original “Survivor” champ Richard Hatch. 10 p.m., OWN.