The Graham Norton Show
10.40pm, BBC One
Hurrah! Norton is back and his sofa is crammed with celebrities once more. Kylie – currently inescapable as she promotes her new album Tension (but always a delight nonetheless) leads the lineup. She’ll nuzzle up to Boiling Point star Stephen Graham, comedian David Mitchell, Eurovision competitor Mae Muller and Juice star Mawaan Rizwan. Hollie Richardson
Gardeners’ World
7.30pm, BBC Two
Monty Don is planting garlic, onions and spring bulbs this week. Meanwhile, Joe Swift heads to a gravel garden in Kent – ideal for people who forget to water their plants – and Tom Brown is in Salford, checking out the plant trials at RHS Garden Bridgewater. Hannah Verdier
Amazing Railway Adventures With Nick Knowles
9pm, Channel 5
Knowles nicknames his next adventure “The Volcano Express”, taking trains down the west coast of Italy. This week, he’s leaving Mount Vesuvius in Naples and heading to Mount Etna in Sicily. He also learns to stick to what he knows, after a trip in a gyrocopter goes very wrong. HR
Open House: The Great Sex Experiment
10pm, Channel 4
Live sex show, anyone? That’s what Katey and Dan are pursuing in the penultimate episode of the kinky series. Meanwhile, Nicolle is a people pleaser – which means she needs to pick a couple who will really listen to her wants and needs when she invites them to have sex with her and her boyfriend. HR
Warrior
10pm, Sky Max
The gang drama set in 1870s San Francisco has so many political and criminal factions pursuing their own agendas that it can be a struggle to keep track of it all. But things are pretty simple for captured Tong leader Young Jun this week: try to survive a brutal brawl in the city’s new “deportation centre”. Graeme Virtue
Drift: Partners in Crime
10.10pm, Sky Atlantic
You’re never far from a bullet or an action scene in this German thriller. In this week’s double bill, lawyer Maryam is looking into the bridge collapse and getting closer to the truth. Meanwhile, Edda’s holding a hostage so crime-fighting brothers Ali and Leo have 48 hours to find Phillip’s killer. HV
Live sport
Golf: Ryder Cup, 6am, Sky Sports Main Event The foursomes kick off the 44th staging, at Marco Simone Golf and Country Club in Rome.