****Update***
After trying a few more times I figured it out.
1st of all I had to make a copy of the image that I wanted to use on my desktop and rename it in order for this to work.
I opened both images in photoshop, in one of the pics. I used the rectangular marquee tool to select just the tv. Then I right clicked and chose layer via copy. In the same image that I used the marquee tool, I chose the magic wand holding down the shift key and selected the tv again.
Back in my second untouched image, I used ctrl+a to select all, ctrl+c to copy and once again back to the image with the tv selected and chose edit paste into. Afterwards I just used the move tool to move the image around some.
I wanted to have more than one image in the tv, but the original image was shot at closer range so I couldn't fit more than one. Sorry if all of this sounds confusing. Maybe it will help somebody else