"Ethel" (9 tonight, HBO) is a big-hearted documentary, full of love and life, not as tough as its subject, but certainly as elegant.

Directed by Rory Kennedy, the last of Robert F. Kennedy and Ethel Skakel Kennedy's children, born six months after her father's murder, the film is an appropriate tribute to a woman who raised 11 children, lost two of them and held her ground.

The film features the first interview Ethel Kennedy has given in 25 years, and don't think because she's talking to her daughter, she's cooperative. She's mostly candid, but there are places she refuses to go. One of those places is talking about her late husband's assassination. That's understandable, but her silence, actually, her inability to speak of it, speaks volumes about her lingering pain as a wife and mother, and the nation's lingering pain surrounding that awful day.

The Big Bang Theory (8pm, CBS) - Wolowitz is disappointed when he doesn't receive a hero's welcome upon his return from space, while game night degenerates into a pitched battle of the sexes.

30 Rock (8pm, NBC) - Liz (Tina Fey, right) clashes with Tracy and sets out to prove to him that women are indeed funny. Liz must also protect Jenna from negative publicity, while Jack takes a shot at an offbeat dating strategy.

Grey's Anatomy (9pm, ABC) - The plane crash survivors face a difficult choice that will have far-reaching effects.

Ethel (9pm, HBO) - A profile of Ethel Kennedy, widow of former Senator Robert F. Kennedy, features her recollections of political campaigns, her conservative roots, and her husbands death. The film, directed by Rory Kennedy, Ethel and Robert's youngest child, features interviews with seven of their 11 children. Adrienne reviews.

Parks and Recreation (9:30pm, NBC) - Leslie responds to an STD outbreak among Pawnee high schoolers by conducting her own sex-education class. At the same time, Tom finds himself gadget-less and turning to Ron for help in coping with life without technology.

Elementary (10pm, CBS) - A child is abducted by a serial killer known as the Balloon Man, who leaves a signature batch of balloons at each of his crime scenes.

Scandal (10pm, ABC) - An overly suspicious government employee shocks the team with a case involving top-ranking people, Meanwhile, lingering questions about Quinn's past cause trouble at the firm, and Olivia's ex-boyfriend reappears.