Story: "Follow This Line" by Michael O'Leary
Illustrated by John Haslam
Presenters this week Carol Chell, Johnny Ball

(Repeated on BBC1 at 4.15 pm)
(Colour)

with Richard Whitmore
Weather

Sam, raised by a foster father, Ben Lynch, learns that his daughter has been killed by Lynch's son. Ignoring all advice, Sam is determined to avenge the murder.

From France, a programme of music and comedy starring the very versatile Marcel Amont

A shortened version of the highly inventive programme by television director Jean-Christophe Averty - well known for his imaginative use of electronic effects - and which received a special commendation at this year's Montreux Golden Rose Festival.

A ballad written and sung by Alex Glasgow
A portrait in music and film of his home town, Newcastle

"And the Tyne slides by The seagulls cry
The ships lie safe and silent at the riverside."

by John Gale
'The Hommenberg lager has come again, and when the Hommenberg comes they all come.'

(Colour)

and Weather

Nearly every adult person has experienced a sexual problem at some time or other. It can take many forms, from the frigidity that often follows pregnancy, to the fear of impotence in middle-aged men. It has been estimated that one in 12 women suffer from frigidity and one in 20 men from impotence.

Yet such are the taboos surrounding this subject that few of these people talk about their problems. Even fewer think that there is any real treatment available.

Tonight's Horizon looks at the range of possible treatments and, to see how effective they can be, includes four people who decided to do something about their problem.