It's 1985 Jim...click on the link that I posted with my answer.
Here's the quote from that article:
Commercials: The average cost for a 30 second commercial during the 19th Superbowl was $500000 and marked the first time that a one minute TV commercial cost $1 million. Ford presented a series of commercials that year to introduce their latest Ford Thunderbird model. Budweiser of course had their usual comedic beer commercials.