SURVIVOR: MICRONESIA

Sunday, 8 p.m, CBS

After a particularly nasty season, the final four could be all women. Designer Amanda, nurse Cirie, personal trainer Natalie and charity organizer Parvati are battling Erik for the win. His advantage? He’s won all the immunity challenges while the ladies have lied, cheated and back-stabbed their way into the finals.

SAMANTHA WHO

Monday, 9:30 p.m., ABC

Closing out year one, Donald Todd, executive producer of ABC’s “Samantha Who,” has a challenge: to keep the show fresh while allowing Samantha (Christina Applegate, right) to evolve. “In the first season, Samantha was like a newborn learning everything over again,” says Todd. “Next season, she’ll be like someone just out of college who doesn’t know which way to go.” But she will have some help. Sam will see a sexy neurologist who says the memories that were wiped out in a car accident may never come back.

Also on

Monday

n “The Bachelor”

10 p.m., ABC

Matt will propose to either Chelsea, a pharmaceutical sales rep from Durango, Colorado, or Shayne, an actress from Malibu, Calif.

n “Medium”

10 p.m., NBC

Allison (Patricia Arquette) tries to convince a young couple that their dream house isn’t irrevocably haunted until things take a turn for the worse.

LAW & ORDER: SVU

Tuesday, 10 p.m., NBC

Stars on procedural dramas are falling like dominoes this season. Khandi Alexander is leaving “CSI:Miami.” Gary Dourdan is out on “CSI.” In the season finale of “Law & Order: Special Victims Unit,” Adam Beach (below) who just joined the show this season as Det. Chester Lake, becomes the prime suspect in a murder after he reopens a closed case. Lake faces similar circumstances to those of Det. Ed Green, played for a decade by Jesse L. Martin, who left “Law & Order” last month. In the finale, Lake gets involved in a gunfight, which leaves him in desperate straits. He takes a hostage (guest star Victoria Cartagena), which makes him appear even more guilty. The SVU squad works to quickly solve the original case, while Detectives Olivia Benson (Mariska Hargitay) and Elliot Stabler (Chris Meloni) search for Lake.

Also on Tuesday

n “Beauty and the Geek,” 8 p.m., CW Ashton Kutcher’s reality show ends as it began: with geeks trying to convince lovely ladies that beauty is more than skin deep.

n “Women’s Murder Club,” 10 p.m, ABC

Lindsay (Angie Harmon), Claire (Paula Newsome), Cindy (Aubrey Thomas) and Jill (Laura Harris) hunt for a serial killer. Gerald McRaney and John Billingsley are among the guest stars.

TIL DEATH

Wednesday, 8 p.m., Fox

Joy (Joely Fisher) discovers that Eddie (Brad Garrett), her husband of many years, has a secret vice. Only she is shocked.

BACK TO YOU

Wednesday, 8:30 p.m., Fox

When the new station manager shakes up the newsroom, Chuck (Kelsey Grammer) and Kelly (Patricia Heaton) attempt to confront her about some unpopular changes.

THE OFFICE

Thursday, 9 p.m., NBC

The one-hour finale is sadly titled “Goodbye, Toby,” as the Dunder-Mifflinites prepare to fete corporate HR drudge Toby who is finally leaving to live on a Costa Rican beach.

“He’s probably dreamed about this for years,” says Paul Lieberstein, who plays Toby but also co-executive produces the show and co-wrote the episode. “I think 78 percent of people who work in cubicles have a picture of a beach or some other serene place up on their wall.”

Branch Manager Michael Scott (Steve Carell, top) greets the day with joy, telling Angela (Angela Kinsey, above), the unwilling head of the party-planning committee, “Imagine the devil has died and all the evil has disappeared in the world.”

Angela ultimately can’t stand the heat, so the task falls to Phyllis (Phyllis Smith). Meanwhile, Oscar-nominee Amy Ryan (“Gone Baby Gone”; “The Wire”) shows up as Toby’s replacement, Holly.

“We have an enormous number of ‘Wire’ watchers here and she felt like an interesting person to bring in to The Office,” says consulting producer Jennifer Celotta, who co-wrote the episode with Lieberstein.

Michael, who’s been desperate since his break-up with his ex-boss Jan (Melora Hardin), immediately declares a huge crush on Holly, while Dwight (Rainn Wilson) spends his time hazing her. But is it really goodbye for Toby?”We want to save our surprises for the show,” says Greg Daniels, the show’s executive producer. “We’re hypersensitive about keeping all our little firecrackers from going off until the show actually airs.”

Also on thursday

n “My Name Is Earl,” 8 p.m., NBC Season three ends with Earl (Jason Lee, top left) returning to checking off names on his apology list, says executive producer Greg Garcia. “Season four will be more like season one, in which Earl concentrates on his list,” he says.

n “Smallville,” 8 p.m., CW In Michael Rosenblum’s last episode as a series regular, Lex Luther discovers Superman’s Fortress of Solitude.

n “CSI,” 9 p.m, CBS Series regular Gary Dourdan (top right), arrested earlier this month in Palm Springs, Calif., for possession of illegal drugs, is taking his leave of “CSI” after eight years on TV’s top-rated procedural drama. He won’t be allowed to go quietly. Dourdan’s character, Warrick Brown, is accused of murdering a Vegas gangster.

n “Supernatural,” 9 p.m., CW Dean Winchester (Jensen Ackles) made a deal with the devil and now he’s going to hell, or so says show creator Eric Kripke.

n “Without a Trace,” 10 p.m., CBS In the sixth season finale, five people with an unusual connection are all abducted from a coffee shop.

n “ER, ” 10 p.m., NBC In its 14th season finale, “ER” brings on stellar guest stars (Stanley Tucci, Steve Buscemi and Hal Holbrook) and creates crises for everyone. Buscemi plays a boistereious drunk who forces Pratt (Mekhi Phifer) to choose between the life of a patient or the lives of his staff. As former ER chief Kevin Moretti, Tucci pays Kovac (Goran Visnjic) a visit in the hospice where he now works. And Holbrook returns as a wise patient.

MOONLIGHT

Friday, 9 p.m., CBS

Mick (Alex O’Loughlin) and Beth (Sophia Myles) face a crisis in their romance when a vampire strikes a human in the heat of passion.

NUM3ERS

Friday, 10 p.m., CBS

Charlie (David Krumholz) and Don (Rob Morrow) clash when one of Charlie’s colleagues is arrested due to suspicions that he is tied to a terrorist group in the show’s fourth season finale.