Trevor McDonald: Return to South Africa (ITV, 9pm)

Trevor McDonald is, without doubt, a newsroom icon.

Although he started his UK-based career at the BBC in the late 1960s, he's become synonymous with ITV, which he joined as a general reporter in 1973.

During the past 45 years McDonald has brought us extraordinary stories from across the globe; he must have some extraordinary memories, having witnessed key moments from the 20th and 21st centuries first-hand.

If asked to name his top 10 reports, he'd be spoilt for choice, but he already knows which would be in the No 1 slot - his meeting with Nelson Mandela, during which McDonald became the first journalist to interview the statesman following his release from prison in 1990 after serving 27 years of a life sentence. It was not his first visit to South Africa, but it is the trip that made the biggest impression on him.

"It's over 30 years since I saw for myself the horrors of Apartheid South Africa," says McDonald now. "To mark what would have been Nelson Mandela's 100th birthday, I've returned to visit the places where I saw moments that would change the history of a country."

Among the places McDonald visits is Vilekazi Street, the site of Mandela's family home - and also the setting for their talk 28 years ago.

It's a trip that brings back amazing memories, but the reporter doesn't merely want to revel in the past - he wants to see how places have changed since he last paid them a visit.

In Soweto he meets estate agent Matseleng Mogodi, who reveals the radical facelift the area has undergone; he now sells luxury homes to new, black middle-class buyers.

In contrast, some white families, once protected by the economics of Apartheid, are struggling to make ends meet, with several living in a squatter camp in nearby Munsieville, while in Kleinfontein, he discovers a self-sufficient Afrikaner community with its own strong cultural identity.

Then it's time to follow in Mandela's footsteps again by touring Pollsmoor Prison, where he spent six years as a political prisoner and where he famously declared, "No one truly knows a nation until one has been inside its jails. A nation should not be judged by how it treats its highest citizens, but its lowest ones."

On Robben Island, Mandela's most famous temporary 'home', he chats to Mac Maharaj, who was incarcerated alongside Mandela and smuggled out his autobiography, Long Walk to Freedom, on his release.

But perhaps the most extraordinary part of the programme comes courtesy of Mark Solms. His family owned the Solms Delta in Franschhoek for seven generations, where they ran a successful vineyard.

But Solms was uncomfortable with what he called his "ill-gotten gains", so reveals he mortgaged the place, enabling him to give it to the black workers whose hard graft had enabled his family to grow wealthy.

It's a pity that Mandela is no longer around to see such acts - they are clearly the kind of thing he was hoping and praying for during his 27 years behind bars; and something he helped bring about once he was released.

Ackley Bridge (C4, 8pm)

After an impressive first term, the Waterloo Road-style drama goes from strength to strength with the second run. This week, still reeling from the revelation of Iqbal's secret family, Kaneez confronts the other woman and decides she wants to take her life back. When Rashid asks her out on a date, Kaneez realises she needs to put her happiness first for once. Meanwhile, Sadiq and Mandy want more diversity in the school play, and Emma and Sami's affair is galvanised when he helps her convince the Asian pupils to audition for the new production. The cast includes Sunetra Sarker, Adil Ray and Jo Joyner.

The Hotel Inspector (C5, 9pm)

In a surprising first, Alex Polizzi tackles two hotels in the same show - the Horse & Hound Country Inn in Bonchester Bridge, Hawick, and Tenison Towers Guest House in Cambridge. First, she travels to the Scottish Borders to help Rosa and Daniel. It's not long before she is forced to confront the disengaged owners of the Hawick property and offer them an ultimatum. In Cambridge, she gets a very warm welcome from owner Inga. The Tenison Towers Guest House is a place full of memories, which may be the problem. It has fallen behind the times and is stuck firmly in the past.

Conviction: Murder in Suburbia (BBC2, 9pm)

In 2003, Glyn Razzell was convicted of murdering his wife, Linda. Her body has never been found and he has always protested his innocence. In the first of a two-parter led by Louise Shorter, experts in forensic science, policing and law re-examine the case to see if any new evidence could challenge the conviction. The key evidence from the trial was that Linda's blood was found in the boot of the car her estranged husband was driving on that day. Specialists hear how this blood wasn't found until the third police search of the vehicle. Glyn has always maintained the blood was planted and that Linda's death was staged. Blood experts review the original forensic evidence presented at trial to see if they agree with the conclusions that were made 15 years ago.