By Hunter Hodies The television ratings were through the roof for the Celtics-Nets first-round playoff series. The four-game series between the two teams averaged 4.8 million viewers across ESPN, ABC, and TNT. It was the most-viewed first-round series since 2016 when the Golden State Warriors took on the Houston Rockets. In terms of just the Eastern Conference, it was the most-viewed first-round series since 2012 when the Miami Heat played the New York Knicks. This likely had a lot to do with the storyline aspect of certain players. Kyrie Irving was playing his former team in the Celtics and t…