AFC 37, NFC 27
The AFC - Actual Football Content - accounted for 37% of the minutes, just over 100 minutes. Much of it was fluff, of course.
Commercials, including all those "brought to you by" messages came in second with 30%. There was also the 6% for the openings, "when we return" messages and similar transitions.
The NFC - Non Football Content - had the remaining 27 percent, primarily a golf exhibition and a few musical numbers.