UPDATE: This is not the Crank-Nicholson method. This is the Implicit method. (Thanks to user @leo lasagne for pointing this out.)
Apologies for the confusion. I'll work on the Crank-Nicholson method in a separate video.
On this page of the site you can watch the video online Solve the heat equation PDE using the Implicit method in Python with a duration of hours minute second in good quality, which was uploaded by the user Shameel Abdulla 30 November 2021, share the link with friends and acquaintances, this video has already been watched 28,709 times on youtube and it was liked by 555 viewers. Enjoy your viewing!