Movies/shows from the internet to TV?

by suzycat1 - 11/22/09 5:34 PM

We have a PC using a wired modem through Comcast. In a different room we have a Samsung 47" Flat screen that we would like be able to watch movies/shows that we can download from the internet. We have heard WiFi would be an option, but we aren't sure how to do it and how safe our computer would be. Any knowledge on this type of set up?