Tonight in HD: March 21

CSI's Nick (George Eads) searches for a shred of evidence

Friends (TV2, 6.30, R)

The gang plans a surprise birthday celebration for Rachel, but when her recently separated parents show up, they have to throw two separate parties.

Bigger Better Faster Stronger (TV3, 8.00)

Greg Page creates a wallpaper remover/tea maker and James Coleman a chainsaw that also makes tea.

Criminal Minds (TV One, 8.30)

The BAU searches inside a gated New Mexico community for a killer targeting women, and Hotchner looks to an FBI cadet with a unique past for help with the investigation. What the critics say: TV Fanatic, TV Overmind.

Desperate Housewives (TV2, 8.30)

Susan is forced to tell Mike about her side job; Juanita becomes suspicious of Gabrielle’s behaviour; Bree learns a secret about Keith. What the critics say: TV Overmind.

CSI: Crime Scene Investigation (TV3, 8.30, 5.1)

The shredded remains of a man are discovered in a garbage truck and the victim turns out to be the owner of a credit-protection agency that allegedly is involved in corrupt activity. What the critics say: Two Talking Monkeys, CSI Files.

Castle (TV One, 9.30)

When a famous psychic is murdered, Beckett and Castle search for her killer while carrying on a spirited debate on the existence of extrasensory abilities. What the critics say: Den of Geek, BSC, ScreenCrave.

Brothers & Sisters (TV2, 9.30)

Everyone in the Walker family is willing to forgive and forget Scotty’s infidelity. But when the family all put their best foot forward to help them reunite, things end up in a fist fight. What the critics say: TV Fanatic, Culture Mob.

The Almighty Johnsons (TV3, 9.30)

Two nights out drinking lead to two different forms of temptation that could end very badly for all concerned.

City Homicide (TV One, 11.00)

Detective Duncan Freeman returns to Homicide following the brutal bashing that left him in a coma but is he ready to be back in the field?

Hawaii Five-O (TV3, 11.15, 5.1, R)

When the CEO of a surf company is murdered, Kono revisits her past while Five-O is thrown headlong into the varied but interconnected worlds of North Shore surfing. What the critics say: TV Overmind, Television Blend.

Californication (TV3, 12.15, 5.1, R)

Hank has the apartment all to his bad self when Becca visits Karen in New York for the weekend.