The high school baseball summer tournament is broadcasted on TV. And at night, professional baseball is a relay.
Besides, NHK is relaying the American major league.
Do Japanese really like baseball?
I think that at least, relaying of the MLB League is not necessary for most Japanese people.
NHK is a public broadcast, and it collects a high viewing fee.
I think that listening to the viewer's opinion should be heard by support rate survey.