Windows 7 makes a number of networking tasks a whole lot easier to tackle -- one of which is sharing the music, movies, and photos stored on your computer with today's network-ready TVs. If you own a new tv which can connect to your wired or wireless network, it can probably well also play your Windows 7 media.
To set things up, hit the Windows key and type streaming in the search box. Wait for Media streaming options to appear, then press enter. When the options window appears, look for your TV in the devices list. If the button to the right does not read "allowed," click blocked and change it. As long as your TV supports DLNA, that's all there is to it -- now it's just a matter of finding the right menu with your remote so you can start enjoying your videos!
You can even limit access to content. Only want videos you've rated 3 stars or better to be available on your living room TV? Don't want your photos displayed there? Just click the customize... link and check or uncheck a few boxes.