New TV Ghost

I bought the family a new TV and DVD surround sound system for Christmas, and I was at home setting up all this new stuff by myself. My wife and two kids were next door at her mother's house so I could get this stuff set up. After I finished, and before turning it on, I took a picture of it. No one was at home but me and I just simply cannot for the life of me explain this photo! A figure of a person appears in the reflection of the television. I have no clue as to what or who this might be! The room has a window in it behind the TV, with a curtain, and another across the room with the curtains opened. My wife and I were talking about the picture when we got it back the other day. We remembered on that night when we got the TV that we were watching a program and knew that our cat was acting strangely. He would crouch down right at our shower and growl like I've never heard him growl before. When we would try to shoo him away, he'd hiss at us and go right back to that spot. He stayed there all night. The next day, after we got home from work, the hot water pipe to our bathtub (not the shower) and the hot water pipe to our dishwasher came "undone" - not broken or busted, simply came undone! We've never had anything like this happen before. I just can't explain it and I don't really want the kids to know about it because they'd be so scared not to sleep in their own rooms.