With Ancestry.co.uk, you can search three different sets of Birth, Marriage and Death Indexes for England and Wales.
These are fully complete for the years 1837- 1983 for England and Wales. Search these Indexes and your results will be by name range (based on first and last names on the page of the Index).
You'll be taken to the relevant Index page - select 'View Image' and you'll be able to search the page yourself for your ancestor.
These Indexes have been fully transcribed from 1837 to around 1912 - and are being added to on an ongoing basis. So if you're looking for ancestors within these dates, you'll be able to find an individual match, rather than an Index page of names. Click on 'View Record' and you'll be able to view the original page.
From 1984 onwards, paper based Birth, Marriage and Death Indexes for England and Wales were replaced by digital based ones. All records are fully transcribed, so you'll find an individual match. Click on 'View Record' and you'll be able to view the record details, instead of images.