Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Got rid of hum and buzz for TV from cable box

I had a buzz and hum when I connected my TV to the cable tv box. This product eliminated that audio hum and buzz. There was a ground loop between the cable tv coaxial ground and the TV power. I used a separate hum bucker for the power to eliminate the rolling video TV bars. This product eliminated the remaining audio hum and buzz.