I'm sorry to hear that you're having this issue.
If you're using the speakers that are built-in to the television, then no, the speakers are playing the incoming signal from the broadcaster as it is sent.
If you're using external speakers or a receiver or surround-sound system, then try to increase the volume of the center channel.
I have a HL-R4667W/HL set.
Recently, the sound on TV shows is dominated by the background music from the TV show.
Is there a way to separately control the volume of the music from the dialog of the show?