The last time we had two game sevens in the semi finals was almost 40 years ago:
https://www.basketball-reference.com/leagues/NBA_1979.html
The league was a lot different then there where only 22 teams, the merger with the remaining teams of the ABA was still recent. There still wasn't a three point line. The Rockets and the Spurs where still in the Eastern Conference. The Jazz was still in New Orleans and the Clippers where still in San Diego and the Kings where still in Kansas City and OKC where still the Seattle Super Sonic and the Nets where in New Jersey.








