I have no real experience using a sling box but I was at Best Buy when it was slow a few weeks ago and they guy showed me how it works. Seemed pretty cool. He had one hooked up to his tv at home and pulled out his phone and we started watching tv on his phone. He said "its time to mess with the roomie" and started changing channels. He told me that when you change the channel on the app it changes the channel on the TV its connected to. So you probably want to put it on a TV the wife doesn't watch very often...unless you want to mess with her. As a poor RJ driver I don't have the extra money to be able to justify a slingbox, but it is something I hope to get in a while once I get more money or they get cheap enough... Sorry I couldn't be of much more help.