How is this possible?the image on my screen was on the TV upstairs in another women's house.?

I was playing my gamecube when i got a phone call from the lady upstairs,she wanted me to come check her tv out because there was this wierd image on it.i went up there and i noticed that it was actually me and my friends playing a game called soul caliber2 on the game cube but on my tv downstairs.i checked everything out ,the game systems cords where directly connected to my tv.the image was transporting its self from my tv to her tv upstairs but only on certain channels 3,4,8,and 9.how is it possible that what we where watching and playing was visible on her tv with no cords connecting my tv or systems to her upstairs?How is this possible?the image on my screen was on the TV upstairs in another women's house.?
Be sure the output of your game is NOT connected to your antenna! You need a switch so the TV receives its signal from the antenna or from the game, but never both. It sounds like your game is being used as a TV transmitter.How is this possible?the image on my screen was on the TV upstairs in another women's house.?
cable connections in series. It saves money, but it causes some minor glitches. A new TV on her end, or you using a cable splitter could probably fix the problem.
aha thats funny. cable splitter or new tv would work i guess