Today I learned:
You can download the viewing activity for any profile as a CSV file to easily see which titles were watched and when.
The oldest on my list (Remember The Titans) was from January 5th, 2009, which is 3,596 days ago. Almost ten years!
On a related note, if you want to wipe out all viewing activity on a profile, I think you can create a new profile, then delete the old one. Figured I’d throw it out there. 😄
Source: Netflix Help Center