Tonight in HD: February 21

CSI sinks its teeth into Halloween

Friends (TV2, 6.30, R)

The guys are uncomfortable in the presence of Carol’s breast milk while Rachel is uncomfortable with Monica’s growing friendship with Julie.

Bigger Better Faster Stronger (TV3, 8.00)

James and Greg’s solutions for a turbo toaster harness the power of halogen and draw inspiration from firearms.

Criminal Minds (TV One, 8.30)

The BAU team must find a killer who has struck Detroit for the past three years solely during the raucous pre-Halloween celebration of Devil’s Night. Ex-Ghostbuster Ernie Hudson and Hill Street Blues vet Michael Warren guest star.

Desperate Housewives (TV2, 8.30)

Susan feels guilty for lying to Mike about her new, risqué side job; Bree unexpectedly fires Keith when she finds herself falling for him; Lynette thinks Renee is trying to sabotage her marriage. Beverly Hills 90210’s Brian Austin Green guest stars.

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

A man about to be married at a vampire and werewolf convention is murdered the night before his wedding. Andy Dick guest stars as an arms dealer.

Brothers and Sisters (TV2, 9.30)

Sarah gets her first taste of Luc’s very sudden public exposure; Paige falls in with the wrong crowd. See preview.

The Almighty Johnsons (TV3, 9.30)

Goddesses can show up anywhere, be it in a library or at a bar. But they’re not always the goddesses you’re looking for …

City Homicide (TV One, 10.55)

The corpse of a university lecturer, thought to have left town 10 years earlier with his student lover, is found during a drug bust.

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

Repeat of Tuesday’s episode about a former cyber-terrorism expert whose kidnapping risks a breach in national security.

Californication (TV3, 12.10, 5.1, R)

Karen succumbs to Ashby and agrees to go on a date with him; with Marcy still in rehab, Charlie and Daisy bond over Dirty Dancing; Hank anxiously awaits the results of his medical tests.