this is a wiki feel free to add/edit this post
a place to start with understanding analog video
LZX Industries Analogue Video Primer
Studio Rebuild #9: Some Analog Video Basics
Lines of Light: How Analog Television Works
How Analog Color TV Works: The Beginnings
Compatible Color: The Ultimate Three-For-One Special
Analog Color TV Wrap-Up–Some extra info
Why is TV 29.97 frames per second?