The Movie Timeline - it's like a timeline, but of movies
The Spirit of '76 - timeline
David Cassidy and Olivia d'Abo travel back in time to 1976 to retrieve pieces of American history
No copies of the US Consitution exist, so some Americans are mistakenly transported 200 years back to the year 1976 instead of 400 years back to the year 1776 to retrieve it.