wizard neeed?

my neghbour is messing with my viewing i have a matsui dtr2 and i still cant figure out how he does this ,he works from home for a telecom company,what can he be using and trust me ,i and my friends know its him,i live on my own so i had to have friends witness this ,i also swapped tvs and had the box used by some one ese,this has been going on since november,so i am really curious to see what he is using ,hence my search for a druid