Television advertisement or TV commercial is called commercial
or TV ad in US, advert in UK and TVC by industry insiders.
It is about relaying a specific social, political or sales pitch in a limited amount of time, broadly ranging in between few seconds to several minutes.
More expensive than other form of promotion, it is produced and paid for by the organizations called advertiser or marketer and streamed from a television network. The purpose is to generate demand for a product, service, idea or cause. Advertising regulations define the laws and rules under which a product can be advertised.