Tonight in HD: October 18

Shortland Street (TV2, 7.00)

Friends (TV2, 6.30, R) ✫✫✫

Rachel’s paediatrician drops her as a client because she calls him incessantly; Chandler and Monica clash over his move to Tulsa.

Shortland Street (TV2, 7.00) ✫✫✫

Murray is forced to see Evan in a new light; Maxwell becomes an unknowing target; the penny of love drops for Bella.

The Celebrity Apprentice (TV2, 8.30) ✫✫

Season premiere: Contestants include David Cassidy, Richard Hatch, Meat Loaf, Gary Busey, Dionne Warwick, Star Jones and La Toya Jackson. Reviews: Boston Globe, Indie Pulse.

NCIS (TV3, 8.30, 5.1) ✫✫

A former NCIS investigative assistant is found stabbed to death, and her murder is linked to a plot to rob a warehouse full of valuable possessions. Sarah Jane Morris guest stars. Review: The TV Obsessed.

NCIS: Los Angeles (TV3, 9.25, 5.1) ✫✫

Season finale: The team searches for Hetty by trying to discover what prompted her resignation and disappearance.

Nothing Trivial (TV One, 11.05, R) ✫✫

Season finale: Emma’s big news is a wake-up call for Brian, and when tragedy strikes Mac, the team have big reasons to pull together.

Medium (TV3, 11.25, 5.1, R) ✫✫

After Allison slips into a coma while working on a case, her spirit transfers into the body of a middle-aged man. Jeffrey Tambor guest stars.

Cold Case (TV One, 12.05, R) ✫✫