Tonight in HD: August 24

The Walking Dead (TV2, 9.30)

Friends (TV2, 6.30, R) ✫✫✫

The gang are forced to stay up all night as Joey and Ross are stuck on the roof, Chandler and Monica can’t sleep, and Phoebe’s fire alarm won’t stop beeping.

Shortland Street (TV2, 7.00) ✫✫✫

Rachel won’t forgive Jonathon; Nicole decides Luke’s love life needs help; Brooke races to save Alex’s life.

$#*! My Dad Says (TV2, 8.00) ✫

Ed turns green with envy when a millionaire vies for the affections of Rosemary. Plus, Bonnie and Vince’s former boss tries to make amends. Lee Majors guest stars. Review: TV Overmind.

Nothing Trivial (TV One, 8.30) ✫✫

Mac fears for Catherine’s mum when an old reprobate hits town; Brian wants to get rid of an interloper – but is it too late to save Emma?

The Walking Dead (TV2, 9.30) ✫✫✫✫

Rick leads the group to the CDC after the attack and Jim must make a terrible life and death decision. Reviews: Time, AV Club, IGN.

Underbelly NZ: Land of the Long Green Cloud (TV3, 9.30) ✫✫✫

While Ben is temporarily assigned to the Mona Blades disappearance/murder, Marty flaunts his bail conditions and flies to Europe with Andy, where they set up the smuggling of 75000 LSD tabs.

Undercovers (TV2, 10.30) ✫

Against Shaw’s orders, Steven and Samantha attempt to rescue a physicist and his daughter from North Korea – and must battle it out with a rival spy couple.