Highest TV advertising rate ever

The highest TV advertising rate was $2.4 million (£1,643,273) per 30 sec for NBC network prime-time during the transmission of Super Bowl XXXV on 28 January 2001. 

Among those that paid were Budweiser with 'What Are You Doing', 'Alien Wuzzup' 'Blow Dryer' ''NSync' and 'Fat Dog', Monster.com with 'Card Sniffer'. and Cingular Wireless with 'Unbelievably Lucky'. 

For Super Bowl I, in 1967, a 30-second spot cost about $42,000, or $239,167 in today's dollars, adjusted for inflation, according to Advertising Age. For Super Bowl XVIII in 1984, when Apple made ad history with its "1984" spot that introduced the Macintosh PC, 30 seconds of ad time cost about $450,000 (or $833,584 in current dollars). This year, CBS will bring in an estimated $138 million for the game.