HBO Sports released the trailer for Celtics City, a nine-part documentary series about the historic Boston Celtics franchise.

Here's the trailer for expansive 'Celtics City' HBO documentary series, which covers the team's history both on and off the court.

A nine-episode dose of Celtics nostalgia is set to hit HBO next month. The premium cable network on Wednesday revealed the ...

No NBA team has a history like the Boston Celtics, and a new docuseries on HBO will tell the full story of the league's winningest franchise.