Why is multiplayer games on ps3 making all the other tvs in my house fuzzy?

Anytime I get on ps3 and play multiplayer kilzzone everyone elses tv in my house gets scratchy. All I wanna do is melee strangers. Please help! my tv is one the opposite end of the house than.anyone else. My tv is also the first in line for the signal if that matters. Has anyone heard of this before or have any ideas?