This clip explains the fair use doctrine of copyright exception in greater detail, including its "transformative" aspect, using the case of Google Books as an example.
This clip explains what rules something must abide by in order to obtain trademark protection, and lists the numerous things (sounds, logos, names, etc.) that can be trademarked. Stan also gives an example of how some things, such as flavor, cannot be trademarked, and why that is the case.
An explanation of what copyright law intends to protect (doctrine of "originality"), and some things copyright does not protect (like names or slogans).