TV Guide ITV Sunday

In a flashback, an inebriated Gacy confesses to Sam the ways he groomed, sexually assaulted, tortured and killed countless boys and young men. Drama, starring Michael Chernus

Julia explores the South Atlantic and Antarctica, beginning by spotting dolphins and seabirds as she crosses unpredictable waters on her way to the Falkland Islands. Julia treks through towering tussock grass to witness the great natural spectacles of the South Atlantic, herds and shears sheep to learn why the brilliant white Falklands wool is so highly prized, and gets up close with the A23a iceberg

Jimmy Doherty and Shivi Ramoutar are joined in the kitchen by actor and comedian Kevin Bishop, who enjoys black pudding wontons for breakfast and a sweet spicy treat of a pineapple and chilli ccrème brûlée. Chantal Dawson hast tips on how to save ailing houseplants, Shivi learns how to make a natural woodland fire torch with bushcraft and survival expert Mark Beckham, and Jimmy gets up close and personal with some crocodiles and alligators.

Joining Alan at Manor Farm are actor James Murray and writer Lynda La Plante, while florist Jonathan Moseley has innovative ideas for Mothering Sunday, and Andy Clarke serves up his Mother's Day martinis in the Best of British feature

The Fletchers prepare for their biggest event of the year in the form of a six-day-long Christmas Celebrations gala that welcomes families to the farm for festive fun. Elsewhere, the family's much-loved pet Ginger gives birth to her puppies, and the flock gets lost in the fog

In Wakefield, Alan and the team create a secluded secret garden filled with hidden corners and magical touches for a wheelchair-using girl and her family, featuring a playful water feature and plant-petting corner, filled with sensory plants. Meanwhile in Swansea, Katie Rushworth creates a modern, sleek, sunken secret garden for a woman who throws parties for the elderly to ease loneliness

Graham Norton hosts the game show as barrister Daniel, site manager Lorraine and software sales rep Nicole compete to solve word puzzles to get the chance to spin the wheel and win big money prizes, with a potential jackpot of £50,000

The intrepid archaeologist sets out to find his estranged father, who has gone missing while searching for the Holy Grail. Once reunited, the duo team up to finish the task and locate the sacred relic before the Nazis get their hands on it. Action adventure sequel directed by Steven Spielberg, the third instalment in the successful franchise. Harrison Ford stars, alongside Sean Connery, Alison Doody, River Phoenix, Julian Glover and Denholm Elliott

Ben Shephard asks the questions as Anna Williamson, Amir Khan and Stuart Pearce answer questions to win turns on an arcade-style machine. Dropping tokens down a choice of four chutes, they hope to knock piles of them off a moving shelf - and the more they collect, the better their chances of collecting the £20,000 prize for their selected charity