On the British Library's 'Sound and vision' blog page, identify and state the primary types of media content that the British Library archives and provides access to, as described in the introductory text.
Navigate to 'blogs.bl.uk'. Scroll down and locate the 'Sound and vision' blog link. Click on the 'Sound and vision' blog link. Identify the introductory text describing the content of the 'Sound and vision' blog. Extract the types of media content mentioned.
Successfully navigate to the 'Sound and vision' blog page. Identify that the British Library archives 'millions of sound recordings'. Identify that the British Library provides access to 'video material'.