TV tonight: riotous Irish comedy The Young Offenders returns

The two bad lads find themselves on the run from the gardaí and wearing floral frocks. Plus: James McAvoy joins Claudia Winkleman. Here’s what to watch this evening 9.30pm, BBC OneA fifth season of Peter Foott’s Cork-set comedy opens with Jock (Chris Walley) breaking out of a Colombian prison and reuniting with Conor (Alex Murphy) back on home turf. But, as they head on the run from the gardaí together, the twosome find themselves in a hostage situation with an elderly couple, while wearing floral dresses. Hollie Richardson 7.30pm, BBC OneThe unsung hero recognised in this week’s portraiture show is Eddie, the “Iron Gran”, who did her first marathon in her 50s, learned to swim at 60, and, at 72, became the oldest British woman to complete an Ironman triathlon. Artist Caroline Pool takes on the challenge – but will she depict Eddie’s fun-loving energy, or her more reflective side? Alexi Duggins 8pm, BBC OneSomeone in Shipton Abbott is committing burglaries, then returning to clean up the mess: a typically low-stakes mystery for Humphrey (Kris Marshall) to unravel by the Devon seaside. The episode is more concerned with soapy storylines – such as Humphrey and Martha (Sally Bretton) a