Ghost Whisperer (8 p.m., CBS)

Numb3rs (10 p.m., CBS)
The team investigates the death of a rap star whose murder is connected to an embezzlement conspiracy. Three 6 Mafia performs.

Don’t Sweat It (10 a.m., HGTV)
A family gets a heck of a workout when they demolish a wall in the kitchen and make a safer pathway to the home gym in their garage.

Split Ends (6 p.m., Style)
A power-hungry stylist from Minnesota kicks up a little dust when she’s asked to set up shop at a structure- and rule-free salon in Arizona.

Teleflora Presents: America’s Favorite Mom (7 p.m., NBC)
Donny and Marie Osmond reveal which mom has won the title and the $250,000 prize.

Hollywood Habitat for Humanity (9 p.m., DIY Network)
Garth Brooks, Trisha Yearwood and other celebs volunteer to help build safe and affordable housing.

Brothers & Sisters Season Finale
(10 p.m., ABC)
Dead dad William Walker had another secret that could tear his family apart. How much damage can one man do from the grave?

How I Met Your Mother (8:30 p.m., CBS)
Britney’s back! This time, the nerdy receptionist partners up with former bed buddy Barney to destroy his former best bro Ted.

Samantha Who? Season Finale
(9:30 p.m., ABC)
Samantha fears Todd’s girlfriend, Chloe, is trying to keep Sam and him apart. Can’t fault a gal for trying to hold onto her man!

The Hills Season Finale
(10 p.m., MTV)
Spencer thinks he and Heidi are over when he learns she’s taking a job in Vegas. We’re betting not.

Beauty and the Geek Season Finale
(8 p.m., The CW)
A socially integrated geek and a smartened-up beauty are crowned and take home the grand prize.

Women’s Murder Club Season Finale
(10 p.m., ABC)
Lindsay puts her life on the line in the hopes of catching a serial killer. Someone really needs to learn how to leave work at the office.

America’s Next Top Model Season Finale
(8 p.m., The CW)
It’s down to the final three, who shoot their CoverGirl ad. But the catwalk is only big enough for one, and the last model standing is revealed. Cycle-nine winner Saleisha Stowers guest stars.

American Idol (9 p.m., Fox)
Time for the most nail-biting elimination of the season, down to the final two. Will we be seeing an all-David finale? Here’s hoping!

Scoop Style (1:30 a.m./10 p.m.,HSN)
Project Runway finalist Rami Kashou will make a special appearance to sell an exclusive dress he made for the TV retailer.

The Office Season Finale
(9 p.m., NBC)
Michael wants to throw a huge goodbye party as HR rep Toby prepares to leave Dunder Mifflin. Will petty cash cover that?

Supernatural Season Finale
(9 p.m., The CW)
With a mere 30 hours before Dean’s deal with the crossroads demon is up, Sam and Bobby try to find the contract. Always gotta put things in writing!

Without a Trace Season Finale
(10 p.m., CBS)
The team investigates five people who were abducted from a coffee shop. Finally, a good reason to skip that morning latte.

Moonlight Season Finale
(9 p.m., CBS)
Immortal Mick and his mortal girlfriend Beth must weigh the consequences when a vampire kills a human in the heat of passion. Makes other couples’ spats seem frivolous, no?

Dr. Jekyll and Mr. Hyde (9 p.m.,ION)
A contemporary take on Robert Louis Stevenson's classic mystery.

MADtv Season Finale
(11 p.m., Fox)
Alert the FBI! Cast member Bobby Lee does a 24 parody about finding a boil on his body. Guitarist Dave Navarro guest stars.