Here's my situation: I have an iPhone 4, an Apple TV, and a MacBook.
I just updated my iPhone and now have an iCloud. Yes I know I'm 6 months late.
All of a sudden, today, I'm on my laptop in the same room as the television, and my roommate is watching TV. She goes to turn it off, and it shuts off my computer. I had to leave the room before she could turn off the TV without me being affected.
The current situation is under control, but I don't want to have to leave the room whenever we change the channel.