Colin Murray hosts the words-and-numbers quiz, with Rachel Riley taking care of the board and Susie Dent joined by Ranvir Singh in Dictionary Corner.

Alistair Appleton helps a couple who have never lived in an older home, but who are now ready to fall for a bit of period charm in either Norfolk or Suffolk. With a £270,000 budget and three lively whippets to please, they are after a dog-friendly garden and a slice of East Anglian architectural history to call home.

Alistair also meets a willow farmer and discovers how this wonderfully sustainable crop is being woven into the future.

Jean Smart and Hannah Einbinder (actors, "Hacks"); Sarah Isgur (ABC News contributor and author of "Last Branch Standing: A Potentially Surprising, Occasionally Witty Journey Inside Today's Supreme Court").

Returning Champion; 

At Château de Pican, Jane and Rory struggle to fit straight skirting boards on centuries-old wonky bathroom floors during their huge gîte renovation. Near Cognac, Bart and Sarah race to turn their home into a fairytale wedding venue for their best friends' nuptials, and they're starting with a nightmare bathroom. In the Charente, new owners Sophie and Ray are determined to transform a boring bedroom into a beautiful boudoir.

A surprise showdown forces the eliminated cheftestants to create a standout dish with the most unique ingredients in LCK history.

Actor Joel McHale stops by to chat about his shows "House of Villains" and "Animal Control." 

Then, Jennifer welcomes back Carlos Cruz — the once-viral delivery driver turned reality TV star — from New York, New York! After winning "La Casa de los Famosos," Carlos talks with Jennifer about his new role as the lead in the upcoming Spanish reality dating series "El Soltero." 

Kellyoke: Take On Me/ Bryan Cranston and Jane Kaczmarek/ Storm Reid/ Danielle Kartes Kids Cooking Demo/ Best in Class: Cursive Club/ WIL: Lunch Notes. 

Soraya stumbles on a threat to her and her family, as Yara's opinion of Meteoro changes. As Charly loses hope, Yara discovers clues.

Nina and Bing can't stop Nola from figuring out that they spent the night together. Stefano has a flashback and seeks distraction by inviting his friends over. Shanti wants to know if Billy has really changed and agrees to talk with her. Linda feels insecure because Ruben and Janine have a connection that she lacks with him.

Anita receives a major medical update from her oncologist; Bill doles out some tough questions to Hayley; Randy takes a hands-on approach where Lynette is concerned; Smitty covers in front of Nicole; Chelsea tries to be there for Naomi.

Keith Brymer Jones and his partner Marj Hogarth have grand plans to transform two dark, damp storerooms into a guest suite leading out to a courtyard, where they hope to build a raw concrete fire trench. Keith softens the space by hand, crafting porcelain night lights, while Marj makes a canvas sail canopy in honour of Pwllheli's maritime heritage.

Stacey and the team head to Yorkshire to help the Mann-Monro family, a blended household of six that has been overwhelmed by years of clutter and emotional memories.

Sarah brings the alarming message on Katie's phone to the police, hoping it will push the investigation forward. Yet when she tries to show it again, the message has mysteriously disappeared. The uncertainty deepens doubts about what really happened the night Katie vanished.

As Captain Jerome Ricard and Lieutenant Virginie Taylor continue their inquiries, Sarah begins her own search through Saint-Michel. At a local bar she learns that Katie was seen on the night of her disappearance with Xavier and Emma Morvan, shortly before an incident that caused damage at a nearby hotel.

Determined to find answers, Sarah tracks Xavier to his isolated caravan outside town. Inside she discovers troubling signs of drug activity and traces of blood. When Xavier returns unexpectedly, the confrontation turns tense, but he insists Katie left alone after an argument with Emma.

Meanwhile, the investigation uncovers new evidence linking several students to the events of that night. Virginie's questioning of Emma raises further inconsistencies, especially after an item belonging to Katie is discovered hidden among Emma's belongings.

Tensions escalate between Sarah and the Morvan family, whose reactions grow increasingly defensive. The town itself seems divided - some residents sympathetic, others openly hostile to Sarah's relentless questioning.

Then a new development shocks the community: Katie's backpack suddenly appears in a public place connected to an older local tragedy.

Virginie reveals that another teenage girl disappeared in Saint-Michel five years earlier under eerily similar circumstances. As the parallels between the two cases begin to emerge, Sarah realises Katie's disappearance may be part of something far more complicated than anyone first believed.

The second of a two-part special looking into the murder of 86-year-old Una Crown, who was stabbed multiple times in 2013. Forensics get a partial DNA match to a man who had previously been arrested but released due to lack of evidence. Police decide to bring him in once more in the hope that after 13 years of denial, he will finally confess to the killing.

A look at the crimes of Ian McLoughlin and how, in 2013, Graham Buck rushed to save his neighbour from attack. Instead, he was murdered by Ian. A manhunt revealed he had killed three times.

Ant and Dec host as the two new kings proudly push their kingdoms into battle and with a fence running through camp, they are not only divided in numbers but also in opinions. Who will the kings choose to take on the trials and who will ultimately be victorious and win the bush banquet and safari.