Rás na Húicéirí go gCiarraí
Friday, TG4, 8pm
Three vessels - the American Mór, the Mac Duach and the Mac Dara - retrace the route they took during the 1987 Galway Hooker race from Aran to Kerry. They're joined by a fourth boat, The Tony, for the epic voyage.
The Late Late Show Country Special
Friday, RTÉ One, 9.35pm
Country singers Daniel O'Donnell and Nathan Carter will lead the Late Late Show Country Special's Big Tom Tribute. Susan McCann, Paddy Cole and Fr Brian D'Arcy will also join host Ryan Tubridy on thecouch to discuss the impact Big Tom had on the Irish country scene and his legacy. Big Tom, who died this week aged 81, was one of the most beloved singers in the country. Boyzone singer Ronan Keating will be telling viewers about the country origins of one of his solo hits When You Say Nothing At All. Tubridy will also be joined by Gloria, Philomena Begley, Jimmy Buckley, Declan Nerney,Mike Denver, Michael English and Robert Mizzell as the show goes full country for the night.
The Graham Norton Show
Friday, BBC One, 10.35pm
Graham Norton is joined by Oscar nominee Benedict Cumberbatch, who played Dr Strange in Avengers: Infinity War. Norton will also be joined by Matt LeBlanc, who played himself in the final series of Episodes, actress Maxine Peake, who has starred as a 70s club comedian in Funny Cow and Mary Berry and Claudia Winkleman talking about new BBC1 show Britain's Best Cook. Music will be from Calvin Harris featuring Dua Lipa, performing new single One Kiss.
The Woman in White
Sunday, BBC One, 9pm
Ben Hardy, Charles Dance and Dougray Scott star in the BBC's new five-part adaptation of Wilkie Collins's psychological murder mystery. But the big mystery here is why it took the Beeb so long to get around to adapting this 1859 novel? Maybe they've been too busy rehashing Jane Austen. Either way, we're promised a feast of intrigue as young teacher Walter Hartright encounters the titular ghostly figure on Hampstead Heath, setting of a suspenseful chain of events.
Ireland’s Deep Atlantic
Sunday, RTÉ One, 9.30pm
Cameraman Ken O’Sullivan goes in search of the whales, sharks and cold water coral reefs that lurk within our seas. Some of the most wonderful creatures live there, and O’Sullivan is determined to find them.