Viking Dead, Yesterday, 8pm
FROM around 700AD to the Norman conquest of England in 1066, the Vikings of the Nordic lands raided and traded across northern, central, eastern and western Europe to create a feared and notorious empire. Now, almost two millennia after their often-terrifying reign, this new series uncovers secrets from the Viking Age, asking who the Norsemen really were, what the truth was about the raids and battles, and what every-day life entailed. The experts look at the mass grave of a raiding party, which dates back to Roman times.

Long Lost Family, ITV, 9pm
GROWING up, Barbara Jacobs always believed she was one of three children. It was not until she reached her 20s that she made a discovery which would change her life. Davina McCall and Nicky Campbell investigate Barbara’s story, and also Sharon Hearte’s. She was mixed race child adopted by a white family who grew up in the West Midlands. Sharon knew her birth mother, Barbara, was a white woman who worked in a Smethwick bicycle factory, and her father was from Jamaica. She wants to track down her mother to tell her she understands why she was given up for adoption.

999: What’s Your Emergency?, C4, 9pm
PC Nia Tregunna is called to sheltered housing where two girls aged 17 and 13 have been terrorising staff and vandalising property. Meanwhile, PC Tom Gregory investigates a report of a group of women attacking a single girl. PC Jon Simpson visits the male victim of an opportunist robbery at his home. And a 12-year-old who has endured years of bullying gives a statement to police about a teen girl gang.

First Time Call Girl, C5, 10pm
HOW do the women selling their services online get into the business – and how easy is it for them to get out? This film meets Alexis, 22, who is considering going into the sex industry – her experiences with dating apps have left her disillusioned with romance and she believes escorting could offer a more honest encounter. An interview with the manager of one of the UK’s largest agencies leaves her more convinced this is the right path, but will a candid chat with established escort Penny change her mind?