If you want to save Britannica video on the computer then follow the below steps.
Step 1: Visit to official website of Britannica.
Step 2: Select the video for downloading.
Step 3: Play the video and copy the link from URL address bar.
Step 4: Enter the copied URL at Britannica Video Downloader website.
Step 5: Hit the download option and also choose the video quality.
Step 6: Video will be saved in download folder of computer/laptop.