Hypothetically, you are asking whether there is a way you can illegally share copyrighted materials. I don't think this is the right forum for that type of thing.

Alternatively, you can just easily buy the boxed set for $35 on Amazon. It's not hard to find...

https://www.amazon.com/Cosmos-Carl-Sagan/dp/B000055ZOB/ref=mp_s_a_1_2?crid=3DRLOSFV4PH1X&keywords=carl+sagan+collector%27s+edition%2C+collector%27s+box+set&qid=1672462372&sprefix=carl+saga+collector%27s+edition%2C+collector%27s+box+set%2Caps%2C142&sr=8-2