I've watched to lessons. They are: Various Network Devices Part 1 & Part 2.
I don't recall any mention of network bridges. Am I correct that you didn't mention them, or did I miss something. (I searched the notes.)
I have a "access point" with is actually a cable modem, dhcp, switch (4 ports) and wi-fi box. . Connected to this "access point" is an Apple Express Router that is in "bridge mode."
Can you let me know if you'll be covering network bridges and/ or bridge mode?