Tonight in HD: September 23

Harry Potter and the Half-Blood Prince (TV2, 7.30)

Friends (TV2, 6.30, R) ✫✫✫

Monica splashes out on some expensive but excruciatingly painful boots; Phoebe tries to befriend Sting when she learns Ben attends the same school as his son.

Shortland Street (TV2. 7.00) ✫✫✫

Roimata takes on a new challenge; Vinnie battles a pesky problem; Winston’s loyalty is on the line.

Movie: Harry Potter and the Half-Blood Prince (TV2, 7.30) ✫✫✫

In his sixth year at Hogwarts, Harry Potter discovers an old book marked mysteriously ,”This book is the property of the Half-Blood Prince”, and begins to learn more about Lord Voldemort’s dark past. Daniel Radcliffe, Emma Watson and Rupert Grint star. (2009).

The X Factor (TV3, 7.30) ✫✫✫

Simon Cowell’s singing competition continues with thousands of hopefuls auditioning in front of a live audience.

Unzipped (TV One, 9.45) ✫✫

It’s all about the kids as Trelise and her team spend late nights making mushrooms and adding sequins to shoes as we follow the ups, downs, the mums and the singing, backstage at Trelise Cooper’s kids show.

Supernatural (TV2, 10.35) ✫✫✫✫

When Sam receives a mysterious text with coordinates to a small town, he starts to have flashbacks of a case he worked on with Samuel before he reconnected with Dean. Reviews: A Media Mindset, AV Club.

Poking the Borax (TV3, 11.30) ✫✫

Pammie gets plastered on a Queenstown winery tour and paints Arrowtown red; Titchy discovers Maori musical instruments; Didio asks personal questions of Mayor of Greymouth, Tony Kokshoorn.

NCIS (TV3, 12.10, 5.1, R) ✫✫

After an officer dies in a car crash, the team suspects foul play when their investigation leads them into the violent world of underground street fighting.

FlashForward (TV2, 12.30, R, F) ✫✫✫

Mark finds out the date of the next blackout, and Demetri and Simon attempt to stop it. Everyone discovers if the visions they had of the future actually come true.

CSI: Miami (TV3, 12.55, 5.1, R) ✫✫

When the most hated man in Miami is murdered, the CSIs go on the hunt for his killer and his hidden treasure.