There are so many differences between particles 은/는 and 이/가 that one video cannot list them all.

We can however, accurately explain when to use these particles in simple terms. You need to look outside the sentence and see the bigger picture. From looking at sentences in isolation, you cannot tell which is the correct particle to use. In order to select the right particle, you need to think outside the sentence. We learn grammar by breaking down sentences and analysing the contents. However, there is much more to language than vocab and grammar. We need to consider the context of the sentence and how it comes to life.

This video attempts to explain how a sentence can be interpreted in three different ways. Following this, the choice of particle is straightforward.