Might be worth a pop, advice c+ped from the following website.
http://www.iol.co.za/index.php?from=rss_Top%20Stories&set_id=1&click_id=13&art_id=vn20100615123212158C250624A user on social networking site Twitter has posted simple instructions for resetting your television's sound equaliser - a move that will drown out the drone of vuvuzelas without muting other sounds.
The instructions are:
# Enter the sound settings for your TV and find the equaliser.
# Drop the 300Hz channel (which Samsung TVs have, second from left), and raise the adjacent levels.
# Save as a custom set-up (if you can).
Eric Smit, the assistant manager at Samsung Store in Canal Walk, did a spot test and found that it worked on both low-end and high-end TVs.