DRTV generally bypasses traditional retail stores to make a product sale directly with the consumer, but can also be used to drive product sales at retail. DRTV is comprised of three primary marketing subgroups of short form, long form and live home shopping.
Persia/Persian is more or less synonymous with Iran/Iranian. Persia is just the older name whereas Iran is the country's modern name. I think people from Iran call themselves Persian because of Iran's negative image in the west since the 1979 revolution.
The Persian people (Persian: Ù¾Ø§Ø±Ø³ÛØ§Ù) are an Iranian ethnic group native to Iran who are native speakers of the modern Persian language, closely related Iranian dialects and languages, and adhere to cultural systems connected with other ethnic Persians.