IST will use the air time -- some of it during prime time viewing hours -- for the promotion and sales of a variety of products, mostly consumer goods, but also industrial and commercial products, Swan said.
First class is the most luxurious travel class of seats and service on a train, passenger ship, airplane, bus, or other system of transport. It is usually more expensive than business class and economy class, and offers the best service and luxurious accommodation. 1 Aviation.
While First Class is the entry level service, Priority is a rung above First Class and has a system of delivery that is faster than First Class; in most of the cases, delivery of parcels does take place in 1-3 days, though there is no guarantee. This feature makes Priority a bit more expensive than First Class.