This Sunday's championship-deciding American football game between the Seattle Seahawks and the New England Patriots, the Super Bowl, has once again seen vast sums spent on TV advertising.
Over the last five years, the Super Bowl's viewing figures haven't dipped below 105 million, and last year's match set a TV ratings record.
Our US correspondent Lorna Shaddick reports.
IN: NBC announced on ...
OUT: SOC
DUR: 44 seconds
POT: 35 seconds