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 term Iranian is derived from the Old Iranian ethnical adjective Aryana which is itself a cognate of the Sanskrit word Arya. The name Iran is from AryÄnÄm; lit: (Land) of the Aryans .ee also: Iranian plateau, Demographics of Iran, Ethnic minorities in Iran, Ethnic groups in West Asia, Demographics of Afghanistan, Demographics of Turkey, Demographics of Tajikistan, Kurdistan, Ossetia, Demographics of Pakistan, Demographics of Syria, Demographics of Iraq and Peoples of the Caucasus.