7.30pm/8pm/8.30pm, BBC Two The return of TV’s three brainiest quizzes, a triple-bill that kicks off with Clive Myrie and four new contenders seated in the iconic black chair (their specialist subjects are Dad’s Army , Liverpool FC under Jürgen Klopp, the life and works of Jane Austen, and Shania Twain ).
In Only Connect , Victoria Coren Mitchell tests lateral thinking, with the Al Frescans taking on the Midlanders as they try to work out what comes next in the sequence of “sumo, tuwe, thfr”. And finally, it’s over to Amol Rajan and University Challenge as students from Queen’s University Belfast take on a quartet from the University of Liverpool. 7pm, BBC Two A new series in which ornithologist Iolo Williams explores the valleys north of Swansea.
At an old colliery site near Ystradgynlais, he finds a kingfisher has built its nest in coal waste. Meanwhile, deep in a conifer plantation in the Neath Valley, Williams searches for Wales’s rarest breeding bird – the honey buzzard. 9pm, ITV1 Davina McCall and Nicky Campbell present the stories of two women searching for siblings.
Tracey Boyle had children of her own before she learned of her brother’s existence when her mother confided in her that her first-born son was taken from her at the age of 16. Liz Allward was adopted as a baby but always suspected she had a biological sister. 9pm, BBC Two Documentary telling the epic 50-year story of an Indian tiger clan and its five most powerful tigresses, who have rev.