Video Demonstrations of flame retardants in action can be found here.
Expert commentary on the safety, effectiveness and uses of flame retardants can be found here.
Shorter version: Here is a quick burn video featuring a television with flame retardants and one that has not been treated with the chemistry. Within a few seconds it is easy to see the difference flame retardants can make when fires occur.
Longer version: The difference between televisions that are treated with flame retardants and those that are not treated with the chemistries can be found in the video below.