Fans of the popular, but canceled, cable series “State of Grace” (5:30 p.m., Family) can catch one last never-before-seen episode. As special holiday episodes go, it’s a good one, maybe even a classic. But I have always been partial to this sweet little show.

Set in the South in the 1960s, “State of Grace” was one of the few shows that was written to appeal to kids, parents and grandparents. Perhaps that was its undoing. Programmers and advertisers only seem to understand or appreciate shows that are targeted to specific market niches. But “State” also fell victim to a change in ownership. It was developed for Fox Family Network and canceled by the ABC Family Network. Like many people in and out of the television business, I am not exactly sure what the ABC Family network stands for anymore.

• The two-hour documentary “Smothered” (7 p.m., Bravo) recalls the singing comedians Tom and Dick Smothers and their running battle with television censors during the production of their 1967-69 CBS variety show, “The Smothers Brothers Comedy Hour.” While tame by contemporary standards, the show deviated from purely escapist entertainment to reflect growing anti-war sentiments among younger viewers. Interviews with David Steinberg, Harry Belafonte, Pete Seeger and Joan Baez reveal how the show became a voice for the counterculture. Featuring a stable of young and irreverent writers and performers, including Steve Martin and Rob Reiner, “The Smothers Brothers” show proved to be influential for years to come.
• Ally Sheedy stars in “The Interrogation of Michael Crowe” (7 p.m., Court TV), a grim fact-based legal drama with a definite point of view. She portrays Cheryl Crowe, the mother of a 14-year-old boy, Michael, who is accused of murdering his sister. Denied access to a lawyer or consultation with his parents, Michael repeatedly denied committing the murder but broke down after hours of police pressure. While a tape of the cops’ tactics eventually exonerated the boy, he would spend more than seven months in jail.
• The silly series “Small Shots” (10 p.m., TNN) returns for a second season. Hosts Chris Cox and Matt Sloan travel around the country in a van trying to entice small-town residents to appear in short parodies of famous movies. Tonight’s film is “Blind Durham,” a spoof of the baseball favorite “Bull Durham” (9 p.m., TNN). The best parts of “Small Shots” are the auditions where Chris and Matt encounter some peculiar talents. Like the Oxygen Network series “Who Needs Hollywood,” “Small Shots” proves that there are plenty of hams in the heartland.

Tonight’s other highlights

• Al Roker and Ann Curry host “Christmas in Rockefeller Center” (7 p.m., NBC) featuring performances by Michelle Branch, Kelly Clarkson, Sheryl Crow, Josh Groban, Barry Manilow, Kelly Rowland and Carly Simon.
• Michael Rosenbaum hosts a behind-the-scenes look at the movie “Lord of the Rings: The Two Towers” (7 p.m., WB).
• Bartlet goes to the brink over Chinese war games on “The West Wing” (8 p.m., NBC).
• Scheduled on “PrimeTime” (8 p.m., ABC): an interview with Whitney Houston.
• Van Buren is haunted when a 12-year-old conviction unravels on “Law & Order” (9 p.m., NBC).

Series notes

Michael’s old pal (Mos Def) doesn’t let his wheelchair slow him down on “My Wife and Kids” (7 p.m., ABC) … T’Pol’s memories and history don’t mesh on “Enterprise” (7 p.m., UPN) … Angie spreads herself too thin on “George Lopez” (7:30 p.m., ABC).

An escaped drug lord seeks vengeance on “Fastlane” (8 p.m., Fox) … A time traveler tries to change history on “The Twilight Zone” (8 p.m., UPN) … Quinn hires a shape-shifter to target cops on “Birds of Prey” (8 p.m., WB).