The NFL had its first Super Bowl during its 47th season, the '66 Season.
The Church of Satan was established in '66 in San Francisco. San Francisco is home of the NFL team, '49ers'. They joined the professional football league in 1949, but were established three years earlier, in 1946.
Anyhow, on the religion angle, the Bible is of 66-Books and ends with 'Revelation', a word involving '49' Gematria.
- Revelation = 9+5+4+5+3+1+2+9+6+5 = 49