See this thread that I posted earlier:
http://forum.audiogon.com/cgi-bin/fr.pl?bhome&1036026282&openusid&zzTreyhoss&4&5#Treyhoss
I bought the Mondial MAGIC box and while it did eliminate the hum, it also eliminated about half of my Direct TV channels. I ended up getting "cheater" plugs for everything on the same circuit (I had missed one while going through all of this). Anyway, hope this helps you. -Tony
http://forum.audiogon.com/cgi-bin/fr.pl?bhome&1036026282&openusid&zzTreyhoss&4&5#Treyhoss
I bought the Mondial MAGIC box and while it did eliminate the hum, it also eliminated about half of my Direct TV channels. I ended up getting "cheater" plugs for everything on the same circuit (I had missed one while going through all of this). Anyway, hope this helps you. -Tony