Security camera question

Many years ago there were wireless cameras that would transmit short range to a wireless receiver that connected to the television to allow a person to monitor the camera over their TV set. Does anyone know where to get those, or if they make them anymore? I can't find them anywhere. What I need is a camera that is preferably solar powered that I can hook to the tree in my yard so I can see my dog on my TV set in the livingroom when the dog is outside in the yard. I am not interested in wifi and all that.