The brief answer to this is that Judge Willard Bullard does not allow the Memphis TV crew to film the preliminary hearing.  Bullard actually goes a bit beyond just refusing to allow them to film the hearing.  He is extremely angry when he finds out that the TV crew wants to film.

The hearing in question is for Pete Willard and Billy Ray Cobb.  They are, of course, two white racists who are charged with the rape of a 10 year old black girl, Tonya Hailey.  Because of the sensational nature of the crime and the importance of race in America, their case is going to be a big deal.  This is why the TV crew wants to film it.

When Judge Bullard is handed a note containing the request, he gets so angry that he rips the note into pieces.  He then orders that the crew be thrown out of the courthouse altogether -- it is not enough for him to exclude them from the hearing, he wants them out of the whole building.