Ancestry adds Norfolk, England, Bishop's Transcripts, 1685-1941

Ancestry makes available an indexed version of this collection, originally from the Norfolk Record Office, via FamilySearch.
There are more than 2.7 million birth, marriage & death entries, linked to images of the original, from the Archdeaconries of Norfolk and of Norwich. Some parishes across the the county boundary may also be found.

This is the largest collection of records unique to Norfolk on Ancestry. Others are

England, Select Norfolk Parish Registers, 1538-1900	446,441
Norfolk, England, Marriage Bonds*, 1557-1915	147,514
England, Norfolk Poor Law Union Records*, 1796-1900	138,680
Norfolk, England, Archdeacon's Transcripts*, 1600-1812	76,841
Norfolk, England, Extracted Parish Records	33,827
England, Norfolk Monumental Inscriptions*, 1600-1900's	14,252
England, Norfolk Non-conformist Records*, 1613-1901	7,521

The asterisks indicate records available at FamilySearch which also has a database England, Norfolk Register of Electors, 1844-1952 with over 4.5 million records.

Findmypast has additional transcribed records from the Mid-Norfolk Family History Society.