There can't be any commercials during games if there are no games being played. That's turning into a big financial problem for the NBA, MLB and NHL. According to Forbes, that problem could turn into a $1 billion loss in television advertising revenue.
Media Radar conducted a study for Forbes and found out that those three professional sport leagues, which all suspended their seasons due to the coronavirus, typically bring in around $1 billion in television advertising during the months of March, April and May. $839 million of the projected billion dollar loss typically is funneled to the NBA.