TV tonight: Nick Knowles is back with his classic DIY show

DIY SOS 8pm, BBC OneAfter first airing 26 years ago, Nick Knowles returned last week with the 34th series of his Bafta-winning home-transformation show – but there’s still a lot of heart behind the stories. This time, Nick, designer Gabrielle Blackman and their army of volunteers are helping Anna and Dan in south Wales, who need a home that supports Dan’s wheelchair and his rehabilitation following a car accident. Hollie Richardson The OJ Simpson Trial: 30 Years On 9pm, Channel 5There was a whole raft of reasons that an apparently foregone conclusion went the other way – and few of them had to do with the man on the stand. Were the “trial of the century” held today, the outcome might have been different, thanks to advances in DNA testing and more balanced juries. Here’s how the furious circus played out, infamous glove and all. Ali Catterall How Are You? It’s Alan (Partridge) 9.30pm, BBC OneA recap of Alan’s career-break sojourn in the Middle East (“the glorious kingdom of Saudi Arabia enjoys a thriving camel milk sector”) is one of many fine moments as his exploration of mental health issues erratically continues. Elsewhere, he gets drunk at a women’s book group. Jack Seale Mitchell and Webb Are Not Helping 10pm, Channel 4David Mitchell and Robert Webb’s sketch comedy comeback wraps up its first season, which has seen them admirably relinquish screen time (and killer lines) to their talented young co-stars. If the meta scenes in the show’s writing room have been scattershot there is no denying the F-bomb efficacy of recurring hoot Sweary Aussie Drama. Graeme Virtue Peacemaker 10pm, Sky MaxOne last chance to appreciate the cast’s hilariously stony-faced dance number during the opening credits as season two of the superhero satire reaches its finale. Bellicose baldy Lex Luthor (Nicholas Hoult) popped up a couple of episodes ago, so could there be another surprise cameo before the dimension-smashing climax? GV The Graham Norton Show 10.40pm, BBC OneAnother star-studded instalment of Norton’s breezy gabfest. Top billing goes to Julia Roberts, fresh from working with acclaimed director Luca Guadagnino on provocative campus thriller After the Hunt. Colin Farrell, Benedict Cumberbatch and Gloria Estefan also squeeze on to the couch. GV Live sport International Football: Northern Ireland v Slovakia, 7.30pm, BBC Two A World Cup Group A qualifier.