Original sentence: From 1970-1977, the divisional playoffs featured the #1 seed hosting the wild card team and the #2 seed hosting the #3 seed unless the #1 seed and wild card team were divisional rivals
Edited sentence: During the 1975, 1976, and 1977 seasons, the divisional playoffs featured the #1 seed hosting the wild card team and the #2 seed hosting the #3 seed unless the #1 seed and wild card team were divisional rivals.From 1970 through 1974, the NFL used a rotation to determine which teams would host conference semifinal and final games, and which teams would play