Tear Fund, the Christian aid and relief agency, is celebrating its 25th anniversary with a day of prayer. Pam Rhodes spends a day at their headquarters while Alan Titchmarsh sees relief work in action. Plus Cliff Richard and Graham Kendrick sing new songs. Hymns include Great Is Your Faithfulness, The Servant Kingand We Are Marching. Producer Chris Mann ; EditorHelen Alexander (Repealed tomorrow at 3.00pm on BBC2)