I could not tell exactly what was happening because I caught this recently on TV but I was still interested to see what was on the scoreboard at the United Center during a Bulls game:

Was this a cheering contest between Chicago residents and suburbanites? Some camera shots on the big screen? A trivia contest?

Given the population of the Chicago region, there were probably a lot of suburbanites at the game. In 2020, Chicago had 2.74 million residents and the region had 9.61 million residents. This puts the suburban population at 6.87 million. This means over 71% of people in the region live in the suburbs.

The Chicago Bulls tend to have good attendance, even if the team is not doing great. This year, the team is under .500 and the team is second in the league in home attendance. (They also have one of the largest arenas.)

Suburbanites have ideas about Chicago and its residents and vice versa. Does identifying the two groups at a Bulls game exacerbate these differences or help bring them together around their common Bulls fandom? (I am guessing it is the second as Bulls games usually are good experiences, even if the home team is not great.)