“Wife Swap” (8 p.m., ABC): The season ends tonight.

“Wife Swap” (8 p.m., ABC): The season ends tonight.

“The Big Bang Theory” (8 p.m., CBS): Bob Newhart guests as the host of Sheldon’s favorite childhood science program.

“The Office” (8:30 P.M., NBC): Tonight’s episode is an hour long.

“Parks and Recreation” (8:30 p.m., NBC): Leslie celebrates her councilwoman anniversary in tonight’s fifth- season closer.

“Elementary” (10 p.m., CBS): Holmes is once again on the hunt for Moriarty.

“Scandal” (10 p.m., ABC): Is “Scandal” about to get even crazier? In tonight’s episode, “some really big stuff” goes down at the White House as an action by the first lady (Bellamy Young) sends Cyrus (Jeff Perry) into crisis-management mode.

tv listings, b6

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