There are all sorts of elaborate ways to mount your flat screen TV on the wall, and many fancy looking stands with articulated arms and whatnot. But sometimes the simplest solutions are the best, and this may be the case with a simple tabletop shelf that does nothing but provide space under your monitor in order to place electronic components, or simply to change the viewing angle.
Here are a couple of versions – I like the wider one:
Tabletop TV shelf stands pictured:
Top: OFC Express TV Stand 25 x 14 x 5.25, Black
Bottom: OFC Express Dual Monitor Stand / TV Stand 42 x 11 x 5.25, Black
If you are not sure how high you want your TV to be, you may want to look for a height-adjustable model.