Holy Saturday known in the Prayer Book tradition as Easter Even has always been a low-key day liturgically. It has been a day of rest in commemoration of Christ's time in the tomb and a day of preparation for Easter celebration. From the second century onwards the evening of this Saturday became a vigil of prayers and readings. The rite of kindling new fire, baptizing catechumens, and celebrating the first Eucharist were added after midnight. In 1549, Cranmer simplified matters and eliminated most of the speccial features of Holy Saturday and the Great Vigil. He did retain a Psalm, Epistle and Gospel. The Palm Sunday Collect was expected to be used, and some baptisms were administered. In 1637, the Scottish Book of Common Prayer added a proper collect for Easter Even, possibly prepared by Bishop Cosin. The 1662 BCP included this collect which connects Holy Week-Easter themes with baptism.
Grant, O Lord, that as we are baptized into the death of thy blessed Son, our Saviour Jesus Christ, so by continual mortifying our corrupt affections we may be buried with him; and that through the grave, and gate of death, we may pass to our joyful resurrection; for his merits, who died, and was buried, and rose again for us, the same thy Son Jesus Christ our Lord. Amen.