8 Simple Rules and Complete Savages, 8 and 8:30 p.m., Channels 9, 22.

It's a double night for likable young Kaley Cuoco.

On 8 Simple Rules, she has her usual duty as Bridget, the hot teenager. This time she's in an uneasy triangle: She likes a guy (the tennis coach) who likes her mom.

On Complete Savages, she would be a great girlfriend for Sam - except she's always on her cell phone.

Oddity

The Persuaders, 10 p.m., BBC America.

Friday is retro night with James Bond-style shows. Diana Rigg's The Avengers (1961-68) is at 8 p.m., with Roger Moore's The Saint (1963-69) at 9 p.m.

Now that's rounded out by The Persuaders, a brief (1971-72) ABC show with Moore and Tony Curtis. Tonight's opener is bright, breezy and empty.

Moore plays a British dandy and Curtis is a New Yorker, both very rich. They fight, they drive fast (backed by vacant, pre-disco music), they use beautiful women as expendable props. Also, there's sort of a story with an enigmatic beauty and glowering bad guys.

Worth watching

Joan of Arcadia, 8 p.m., Channels 12, 7. God wants Joan to make a record of her high school life on videotape.

Enterprise, 8 p.m., Channel 25. Last week, viewers met Soong, an ancestor of the scientist who created Data from Star Trek: The Next Generation. (All three roles are played by Brent Spiner.) Tonight, in the second of three parts, Soong's world is crumbling. The augmented humans he created are turning bad.

JAG, 9 p.m., Channels 12, 7. Mac and Harm are in Iraq for the court-martial of a sergeant.

Third Watch, 9 p.m., Channels 5, 2. Last week, Finney's dad (Charles Haid) arrested Cruz (Tia Texada) for killing a drug dealer. Now Cruz is in jail and Yokas (Molly Price) - who doesn't want to say what really happened - is questioned.

Hope & Faith, 9 p.m., Channels 9, 22. Robert Wagner returns as the sisters' father. This time, Jaclyn Smith also visits. She plays his girlfriend.

Inside Dish debut, 9 p.m., Food Channel. Rachael Ray is charming on 30 Minute Meals and on $40 a Day. Once a guest is added, however, she's out of control. The opener's guest is Dennis Franz (NYPD Blue), making a meal with his daughter, a culinary-school student. Ray tries to interview him at the same time, but she keeps interrupting, injecting and getting in the way. This might seem charming on a date, but it's awful on an interview show.

Medical Investigation, 10 p.m., Channels 5, 2. In a tiny West Virginia hamlet, a contagious virus has killed 10 percent of the townsfolk and the hospital is packed. Doctors hustle to learn how it started.