7/13 Why Canada's coastal forest is home to top predators like eagles, bears and wolves. (R)
1/3 In Afghanistan, Kate Humble meets traditional shepherds in the remote Wakhan Corridor. (R)
4/31 Neil Oliver performs on the stage of a remarkable coastal amphitheatre near Land's End. (R)
BBC Two Scotland only
13/31 The story of president John F Kennedy's trip to Galway just five months before he died. (R)
BBC Two except Scotland
8/13 Steve finds out how a tiny coral building block created Earth's largest living structure. (R)
A visit to Strangford Lough to discover the abundance and diversity of wildlife there.
BBC One Northern Ireland, Northern Ireland HD only
A look through 45 years of Horizon archive to see how science came to understand sex.
A look through 45 years of Horizon archive to see how science came to understand sex. (R)
Thursday 12 September 2013