The makers have modernized Robin Hood’s (Jonas Armstrong) language, and Marian (Lucy Griffiths) shows contemporary spunk, even if she does play hard to get. They have the evil sheriff of Nottingham (Keith Allen) launch a dastardly ambush with the phrase “It’s showtime!”

But worry not, purists. This “Robin Hood” still teems with acrobatic fights above battlements and improbable escapes from certain death.

The season opener brings a visit from the sheriff’s evil sister, whose intentions, and indeed her luggage, are nothing short of venomous. Season two’s 13 episodes will keep Saturday-night viewers entertained through July 19.

 • The devilishly clever British chatfest “The Graham Norton Show” (10 p.m. today, BBC America, TV-MA) returns for a third season of pushing the boundaries of American television. Tonight’s guests include actors Tony Curtis and Kevin Bacon.

 • Imagine a small city where every resident sleeps on top of a nuclear reactor that happens to be next to a huge weapons depot located underneath one of the world’s most dangerous airports. No, I’m not talking about Springfield on “The Simpsons,” but the everyday conditions documented in the 10-part, five-night series “Carrier” (9 p.m., Channel 9, Sunday through Thursday).

Filmed over a sixth-month period on the USS Nimitz while on deployment in the Persian Gulf, “Carrier” offers interviews with many among the 5,200-person crew. The average age on the Nimitz is 19. That, and the mixed-gender population, can make for a lot of intrigue and feeling among many that they have embarked on a floating high school.

The older chiefs recognize that a good number of their recruits have joined the Navy to find the structure and discipline they never had back home. A quick montage of new sailors shows how, for perhaps the first time in history, the Navy has become the place you join when you want to stop getting tattoos.

The sheer number of stories in “Carrier” is both a strength and a weakness. With the intensity and discipline of a beehive, the Nimitz during wartime is the perfect setting for drama. One can’t help feeling that the narrative potential is more diluted than enhanced by the panoramic documentary approach. The reliance on cheesy power ballads and “Top Gun” moments doesn’t help, either.

 • “Celebracadabra!” (9 p.m. Sunday, VH1) sports not only one of the stupidest titles in TV history, it’s proof that Carnie Wilson (“101 Celebrity Slim Downs,” “Gone Country,” “Inside Edition”) will appear on just about anything.

 • “Nazi Scrapbooks from Hell” (9 p.m. Sunday, National Geographic) looks at two photo collections that were not supposed to survive the Holocaust.

One documents the arrival of Hungarian Jews in 1944 at the Aushwitz death camp. Another collection is at once more innocuous and chilling. It documents camp guards and personnel at moments of leisure – playing with dogs and enjoying a blueberry harvest – a little down-time before resuming the grueling task of gassing and burning thousands of new arrivals every day.

One expects that only monsters could do such work, but these pictures reveal the camp workers to be ordinary folk – just like you and me. And that’s all the more horrifying.

Today’s highlights: In addition to her movie “Baby Mama,” the “SNL” comic Amy Poehler lends her voice to the new kids cartoon “The Mighty B!” (9:30 a.m., Nickelodeon).

 • Ralph Fiennes joins the cast as Lord Voldemort in the 2005 sequel “Harry Potter and the Goblet of Fire,” (8 p.m., Channel 4, TV-PG, V).

 • Spend six hours at the DMV with the “Parking Wars” (8 p.m. to 11 p.m. and midnight to 3 a.m., r, A&E) marathon.

 • Scheduled on “48 Hours Mystery” (10 p.m., Channel 7): A wife and mother’s secret emerges after her disappearance.

Sunday’s highlights: Turner Classic Movies showcases two digitally restored films by French silent director Abel Gance, “J’Accuse” (6 p.m.) and “La Roue” (8 p.m.).

 • Henry sends More to the tower on “The Tudors” (9 p.m., Showtime, TV-MA).