Last fall I put a 21"tv on a wall bracket in my kitchen. I wanted a clean install and didn't want to run any extra wiring since my house has plaster walls...
I got a articulating bracket from
Monoprice for around $20, a 21" Vizio flat panel for around $199
And not wanting to have to run wires and get another STB I found a wireless 1080p HDMI transmitter/receiver system. It works really well.. MSRP is $139, I found it for less on Amazon...
Check out
Brite-view Wireless 1080p HD Beam-to-TV Transmission Kit
I have a galley kitchen so I mounted the tv over an existing outlet, and it almost hides completely the plugs, HDMI receiver etc.