Hollie Richardson, Ellen E Jones, Alexi Duggins and Graeme Virtue
A terrifying documentary about the Indian Ocean tsunami that happened after an earthquake and killed more than 230,000 people on Boxing Day 2004. Over two episodes, survivors relate the devastating events by sharing their stories: Frances had just married Keith on the beach when the wave hit, while pregnant Sri was running a hotel, and Shenth was on a train from Colombo. Hollie Richardson
6.20pm, BBC One
The spectacular beauty of Russia's Lake Baikal or the Tibetan Plateau (here enhanced by Laurentia Editha's rousing orchestral score) could easily obscure the brutal reality of life there. That's where David Attenborough comes in, explaining to us the tenacity of the Baikal seal pup and the ingenuity of the Himalayan wolf. Ellen E Jones
8pm, ITV1
The neighbours are going to be banging on the bathroom wall: it's the Girls Aloud reunion tour recorded earlier this year. Nicola, Cheryl, Nadine and Kimberly are on top 00s pop form and they pay beautiful tributes to Sarah, who died of breast cancer in 2021, throughout the night. HR
9pm, BBC One
Mark Rylance's Thomas Cromwell continues to be haunted and guided by disgraced - and very much dead - mentor Cardinal Wolsey (Jonathan Pryce) as he sees an opportunity to destroy an old enemy. Meanwhile, will new queen Jane Seymour (Kate Phillips) announce a pregnancy before the coronation? HR
9pm, ITV1
Oti Mabuse, Coleen Rooney and Tulisa from N-Dubz lead the lineup for this year's outback jaunt - which drew more viewers than any other entertainment show last year. Expect most headlines to centre on Rebekah Vardy's arch nemesis. Alexi Duggins
9pm, BBC Four
Unimpressed by Big Brother on ITV2? Check out the ominous original as the series that asks gifted actors to perform revered novels kicks off its third series with Orwell's ever-timely tale of soul-crushing totalitarianism. Sacha Dhawan's wary narration - channelling furtive shirker Winston Smith - is multilayered and moving. Graeme Virtue
International Netball: England v Jamaica, 2pm, BBC Two The second match at AO Arena in Manchester. The first game is on Saturday on iPlayer at 3.45pm.
International Rugby Union: Wales v Australia, 3.45pm, TNT Sports 1 At Principality Stadium. Preceded by Italy v Georgia at 1pm.
Nations League Football: England v Ireland, 4pm, ITV1 A Group B2 match from Wembley.