Placement: Television, local and national
Key Considerations: You only get :30 seconds.
Technique: Many and varied: brand, item & price, sale, testimonial, political.
Results: Early in my career I wrote and produced hundreds of local television commercials as well as producing and directing live television shows. I know the form in all it's variations. Most recently I have been hired for "political" ads.
Keys to Success: Either you are absolutely clear about your value proposition, or your "creative" is so good and so directly related to your message, that you cannot be ignored. You must cut through "the clutter".