Tonight in HD: March 31

Fringe's Olivia (Anna Torv)

Friends (TV2, 6.30, R)

When Janice asks the gang if any of them have ever slept together, the friends flash back to a time three years before.

No Ordinary Family (TV2, 8.30)

Jim and Stephanie’s romantic plans are thwarted when they have to team up and use their superpowers to deal with a serial arsonist. What the critics say: BSC.

Bones (TV3, 8.30, 5.1)

A human carcass with a gunshot wound has literally melted into the dashboard of a charred truck, but the team discovers that neither the fire nor the bullet killed him. What the critics say: Suite 101, TV Fanatic.

An Idiot Abroad (TV3, 9.30)

Season finale: After returning home, Karl Pilkington is quizzed about his travels abroad by his friends Ricky Gervais and Stephen Merchant, who want to find out if he’s actually learned anything from his experiences.

Fringe (TV2, 10.30)

When a healthy woman is found dead from a disease she never had, the Fringe team investigates the origin of this inexplicably fatal condition before it claims more lives. What the critics say: IGN, BlogCritics.

The Unit (TV3, 11.45, 5.1)

The Unit members attempt to rescue American embassy personnel and their families in Abidjan, Ivory Coast, after violence breaks out in the region.