Our Girl is on BBC One at 9pm.

Georgie finds her place in 2-Section at risk, as the team struggles to meet their new leader’s high expectations.

Ackley Bridge is on Channel 4 at 8pm.

Mandy persuades Steve to go for the Deputy Head role, and Emma and the students are still reeling from tragic events.

The Big NHS Singalong is on ITV at 9pm.

This musical special, hosted by Ashley Banjo and Sara Cox, sees the NHS Choir joined by staff and music stars as they attempt a record-breaking singalong, to celebrate the 70th anniversary of the national health service.

Agent Carter is on Paramount Network at 8pm

New Freeview channel, Paramount Network, begins broadcasting tonight. The free-to-air premier of Marvel Comics-spy drama, Agent Carter, is tonight’s highlight.

This Is Us is on More Four at 9pm.

This US drama returns for its second series. Kate, Kevin and Randall all decide to make changes in their lives, as they celebrate their 37th birthdays.

Mortimer and Whitehouse, Gone Fishing is on BBC Two at 10pm.

Paul and Bob reflect on their career while fishing for wild rainbow trout in the Monsal Valley.

The Highland Midwife is on Channel 5 at 8pm.

Midwife Helen must decide the safest delivery option for a first-time mum in Campbeltown.