Answer:
advertised goods.
Explanation:
n 1920s, an inventor named John Loggie Baird implemented the use of Nipkow disk in television. This implementation allowed Television to reproduce image that is transmitted from far location. This made Television became really popular and purchased by almost every household in Untied States.
Advertisers saw this as an opportunity.
Promoting their product in a form of moving visual tend be perceived as more interactive and attracted more demand from the consumers. As a results, companies started to make deals with broadcasting companies to advertise their goods in between their shows.
