Reminds me of a funny story, Woodman.
I was living in a beach suburb called Bondi in Sydney a few years back in a small apartment building on the second floor. We looked across and down to the people living on the first floor of the apartment next door.
One night while me and my roomies were bored I was kinda "checking out" the neighbours and I could see their TV. I noticed it was a Sony. I looked at our TV. It too was a Sony - pretty much looked like the same model, if not the same run of models.
So I grabbed the TV remote, pointed it across and down through the two windows (probably twenty or thirty feet) and hit the red "off" button. Their TV flicked off. Me and my roomies watched them get up and check it all out, turn it back on, discuss it a lot and then finally sit back down and watch their program again.
Whereabouts we turned their TV off again
. By this time they were very confused and I had nearly wet my pants with laughing so hard.
When they were out we would change all the settings on their TV. The best one was at 2am we would come home from the pub, turn on their TV, quickly mute the sound and then turn it up really loud and then un-mute it. Watch as all the lights next door went on and they sleepily unplugged their TV.
Man we had a lot of fun until they found out. They were so relieved that their house didn't have a poltergeist that they found it funny.
How close is your neighbour's house? Remote control frequencies often overlap...