NBC aired the world’s first TV commercial in 1941. Since then, we’ve seen millions of ads grace our TV screens.

The best commercials can bring in huge amounts of revenue for a brand, but they can also cost a fortune. After all, A-list endorsements and elaborate special effects don't come cheap, while placement can be another huge expense. In fact, reports suggest that 30-second ad spots during this year's Super Bowl were selling for more than $7 million each. 

Read on as we explore some of America’s most expensive TV commercials of all time, adjusted for inflation into today's money. All dollar values in US dollars.