The Level (ITV, 9pm)

JUST as we've been introduced to Robert Glenister as a detective in Paranoid at 9pm on Wednesdays, along comes his brother Philip, best-known as TV cop DCI Gene Hunt in Life On Mars, to feature in another cop series on ITV at 9pm on Fridays. Phew... no wonder Philip features in commercials about saving on your energy bills.

At least, Philip has the decency to play a dodgy drugs trafficker, who has forged an undercover agreement with cop Nancy Devlin, played by Karla Crome (that's actually her real name).

The rest of the fascinating case includes Robert James-Collier, Lindsay Coulson, Noel Clarke and Amanda Burton. The plot focuses on the problems faced by DS Devlin, who is unwittingly caught up in a murder involving drugs trafficker Frank Le Saux (Glenister), the father of Hayley, her childhood best friend. Both women have recently returned to their hometown of Brighton and as they try to rekindle their relationship, Nancy must keep her ties with Le Saux from her colleagues' prying eyes.

Former Doctor Who star turned movie writer/director Noel Clarke thinks that the role of Sean "Gunner" Martin could have been written with him in mind. "Dry, smart, impatient with anyone who isn't as good at the job as he is. Yes, he's similar to me. Also, he's quite solitary. You don't know how to take him sometimes, he can be quite unapproachable. There's definitely an air of that with me. Which I don't mind. So, I don't mind being alone. As a kid, and even now, peer pressure never affected me. When boys were like, 'If you don't come and smoke this cigarette, we're gonna leave you on your own'. I was like: 'I grew up on my own. I don't care'."

The father of three says that he could easily have gone in another direction. "I have friends that went the other way. At the Brotherhood premiere the other night were two of my friends. One of them was an armed robber, the other one. I wouldn't even go into what he did, but he got sentenced to 25 years, served less than that and is now doing a pretty good job and giving back to the community.

"I'd love to go into schools and tell kids, 'Ever thought about being an electrician? 'No, yawn'. But did you know that if you're an electrician you can work on films your whole life? 'Sorry what?'"

Travel Man: 48 Hours in Helsinki (Channel4, 8.30pm)

TIME-conscious traveller Richard Ayoade is joined by actor Paul Rudd for a brisk romp round the Finnish capital. To get their bearings the pair head straight to the ladies toilet in the Torni hotel, which offers the best view of the city. They then go kayaking and snack on some reindeer jerky at the city's Hakaniemi market. Richard and Paul also visit not one, but two saunas – one of which can be found in a well-known burger chain. The duo also visit the wilderness island of Seurasaari, go foraging, and finish up in a sweet shop.

Sir Terry Wogan Remembered: Fifty Years at the BBC (BBC1, 9pm)

WHEN it was announced that Terry Wogan had died in January, at the age of 77 after suffering from cancer, fans from both sides of the Irish Sea went into mourning. Many of us had grown up either watching him on numerous TV shows over the years, or listening to his warm, friendly tones on the radio. Eight months on, it still feels odd to speak of him in the past tense – perhaps his loss will sink in after the broadcast of this tribute programme. It takes a look back at decades he spent working for the BBC; his career began in September 1966 with a show on the Light Programme. The likes of Blankety Blank, Children in Need, Eurovision and his own chat show followed. Here, friends and colleagues including Ken Bruce, Michael Grade, Rob Brydon and Graham Norton share their thoughts on this much-missed man.

Viv Hardwick