What's New Tonight: Sunday, July 7th.

8:00 PM EST:

“Big Brother” on CBS. The nominations for players facing eviction are revealed.

“Celebrity Wife Swap” on ABC. Actress and singer Nia Peeples swaps lives with 80s pop star Tiffany. How will Tiffany survive as she leaves behind her husband and busy life in Nashville for Nia’s beachy life in California.

“The Real Housewives of New Jersey” on Bravo. The rumors of infidelity begin to spread. Teresa plans for a cleansing retreat where she runs the risk of confronting Jacqueline. Kathy tries to avoid all of the drama.

9:00 PM EST:

“Dexter” on SHO. Dr. Vogel asks for Dexter’s help as Miami Metro continue their search for the Brain Surgeon. Debra works her own case and is forced to take matters into her own hands.

“The Killing” on AMC. Holder and Sarah get a break in their case. Seward struggles with his own mortality. Bullet takes on a protecting role.

“True Blood” on HBO. Sookie accepts her attraction to Ben by asking him out for dinner. Eric counters against Burrell’s increasingly potent anti-vampire initiatives. Andy’s faerie daughters keep some dangerous company. Takahashi is asked by Bill to synthesize some new kinds of blood.

“Whodunnit??” on ABC. 10 guests remain as an exploding golf cart sends the remaining sleuths into a hunt for the killer.

10:00 PM EST:

“Crossing Lines” on NBC. Sebastian and the ICC team look into a rather unusual situation developing in Poland. When an undercover operation puts Eva and Tommy’s lives in danger, Hickman and Louis must race to save them.

“Falling Skies” on TNT. Hal finally reveals information about his internal struggles. Lourdes works on a new medical procedure that is potentially dangerous. A group sets out on a search and rescue mission.