When I posted this a couple of weeks ago, the video embedded code would not work for some reason. Now it is working again, and I have redone this post. Also want to say once again, the producer of these videos has given me permission to share them.
Revelation Chapter 2 contains a separate letter for 4 of the 7 churches in Asia. Some scholars say that each church represents a stage in the Church Age.
Ephesus-1st Century Church
Smyrna-2nd Century Church
Pergamos-4th Century Church