WATCH: Spend Christmas Day with Carl Sagan and his classic 1977 lecture series

For the benefit of anyone looking to binge-watch something more educational on Christmas Day, enjoy Carl Sagan's lecture series at the Royal Institution in London, as recorded on Dec. 25, 1977.

The series, which originated in 1925, was originally aired on BBC Two. At the time, Sagan was just over two years away from the premiere of his seminal series Cosmos.According to the Library of Congress, he was a professor of astronomy and space sciences at Cornell University with 350 articles and 14 books to his credit by the time he delivered the six lectures over a two-week period that December.

Each of Sagan's lectures can be seen in its entirety below.

Lecture 1: The Earth as a planet

Carl Sagan: Christmas Lectures 1 - The Earth as...by JohnnaKendrick

Lecture 2: The Outer Solar System and Life

1977 Carl Sagan Christmas Lectures 2: The Outer...by silichip

Lecture 3: The History of Mars

1977 Carl Sagan Christmas Lectures 3: The...by silichip

Lecture 4: Mars before Viking

1977 Carl Sagan Christmas Lectures 4: Mars...by silichip

Lecture 5: Mars after Viking

1977 Carl Sagan Christmas Lectures 5: Mars...by silichip

Lecture 6: Planetary Systems beyond our Sun

1977 Carl Sagan Christmas Lectures 6: Planetary...by silichip