alternatehistory.com

Many years ago, I came up with an Alternate 1970 NFL-AFL Merger idea and went way into it by creating schedules for each team as well as a year-to-year schedule rotation. It was really easy to do during through the 1970-1975 seasons due to the 14 game schedule, but once Tampa Bay and Seattle entered the league and the schedule went to 16 games creating the schedules became three-dimensional chess hard so the idea essentially dead unless I can figure it out.

The main change was the switch of the Atlanta Falcons, Minnesota Vikings, and New Orleans Saints going to the AFC instead of the Baltimore Colts, Cleveland Browns, and Pittsburgh Steelers; as well as making the NFC Divisions being better geographically (Dallas and St. Louis go to the West). Other changes were ties were counted during these years when in OTL they weren't, plus playoff seeding and home field were based on records not predetermined seedings like OTL.

Every game was run through What If Sports simulation engine.

Here are the Super Bowl results
Super Bowl V Detroit Lions (NFC) 23-19 Cincinnati (AFC)
Super Bowl VI Washington Redskins (NFC) 15-14 Cincinnati (AFC) *The Redskins did not lose a game, but had one tie*
Super Bowl VII Miami Dolphins (AFC) 30-15 Pittsburgh (NFC) *Still 17-0, couldn't believe that happened*
Super Bowl VIII Miami Dolphins (AFC) 24-7 Los Angeles (NFC)
Super Bowl IX Washington Redskins (NFC) 13-3 Denver (AFC)
Super Bowl X Pittsburgh Steelers (NFC) 36-13 Houston (AFC)