ESPN and Turner production staff and some on-air hosts were present inside the "bubble". ESPN and Turner had many announcers, play-by-play, color, and other commentators physically present to call bubble games.

Are the TV announcers in the NBA bubble?

Inside the NBA bubble: Announcers preparing for game broadcasts unlike any seen before. ... — Thank goodness that play-by-play announcer Kevin Harlan has become the lead voice for the NBA2K video game series.

Where do NBA commentators sit?

With broadcasters barred from the playing surface, the networks reportedly plan to situate them “about a dozen rows up” during games. National announcers typically sit courtside.