The documentary “This Film is Not Yet Rated” (10 p.m. today, IFC) challenges the movie ratings system and the MPAA ratings board. The board is said to consist of moms and dads who get paid by the studios to assign ratings based on their subjective notion of each film’s content.

But the identities of the board members are kept secret. Worse, many contend, the board’s decisions seem capricious. The board leans much harder on the makers of independent films and provides unfair advantages to the big studios, who pay the salaries of the MPAA members.

Others cite some curious cultural and gender biases. The lingering image of a woman’s face expressing sensual pleasure is said to be alarming and worthy of an NC-17 rating, but the gory scene of a woman being shot in the head elicits no comment.

¢ “The Sopranos” isn’t the only family on premium cable to combine murder, intrigue, treachery and sex. Make room for “The Tudors” (9 p.m. Sunday, Showtime). The most startling aspect of this highly entertaining series is the casting of the virile Jonathan Rhys Meyers (“Elvis,” “Velvet Goldmine”) as Henry VIII. Rhys Meyers leaves little to the imagination as to how and why this man seduced and abandoned six wives, countless mistresses and a nation to boot.

But he’s hardly alone. Any tale of Tudor intrigue half belongs to the scheming Cardinal Wolsey, and Sam Neill makes the most of the character, all but stealing the first few episodes.

The 10-episode series concludes before Henry becomes the serial-killer-monogomist we know from popular history. With tales of shifting alliances between England, France, Spain, the Holy Roman Empire and the Vatican, “The Tudors” has much to cover – and it does so in spectacular fashion.

¢ Don’t go looking for any fireworks on “Jerry Seinfeld: The Comedian Award” (8 p.m. Sunday, HBO). Anderson Cooper hosts this award show, the first of what might be many such festivities. Or maybe not.

Fellow comics Robert Klein, Chris Rock and Garry Shandling come to praise Seinfeld and kid him ever so slightly. This is not a Friar’s Club roast. Taped at a Las Vegas casino, during an afternoon, no less, one gets the impression that the producers got it out of the way so the participants and the audience could make their way to the early-bird-special buffet.

The proceedings gain some zip only at the very end, when Seinfeld accepts the award while lambasting the idea of awards and awards shows.

Tonight’s highlights

¢ Scheduled on a two-hour “Dateline” (7 p.m., NBC): the 10-year fling between the fugitive and the warden’s wife.

¢ “Flip This House” (8 p.m., A&E) enters its third season.

¢ Al Roker hosts “Childhood Obesity: Danger Zone” (8 p.m., Food).

Sunday’s highlights

¢ Scheduled on “60 Minutes” (6 p.m., CBS): pharmaceutical lobbyists; murder and DNA; Antarctica, the fastest-warming place on Earth.

¢ “Reno 911” (9:30 p.m., Comedy Central) returns for a new season.