A/V Gurus: Wireless Streaming Video Solutions

I would like to be able to watch TV in my kitchen. I already have a cable box on the next room and was wondering if I could somehow just stream the video from that box instead of going to the bother of running wires. I found this which seems to do what I want but I’m not sure what kind of quality I would get from it.

Are there any other solutions I should look at?

Thanks in advance!