Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Hi, I am trying to find a device that will allow me to watch movies from my PC on my TV. Will this work for that?
Document: There is a lag that can drive you crazy if you are trying to work on your laptop and view on your tv,  but if you just want to watch movies or videos it works well.
This works a treat. I have my PC upstairs and the TV downstairs. I can now operate the PC on my TV and just what I need to watch streaming TV programmes or movies. I found the wireless signal was not great sometimes, so now use a powerline internet plug to connect via the ethernet port.It really works great.
However, they have limitations: A maximum of 30' range, and must be in the line of sight between computer and receiver. Also, 1080P quality is not always attainable unless certain strict conditions are satisfied. Unfortunately, my floor plan will not allow for such an arrangement. This McTivia Wireless PC to TV can work even behind walls, which is terrific.
The procedure to set it up is incredibly complex. So much so that after 2 hours of trying I still could not get it to work through my wireless network. There is no reasonable explanation either in the manual or online of how to enter your wireless pass code. It also discourages wireless networking which is the whole reason for using this device. Do yourself a favor and don't buy this.
To be fair, I have not spent hours and hours playing around with this device. Installation was as described by other reviewers. I have not found a suitable resolution setting to work well with my Panasonic plasma TV. It seems considerably lower quality than the computer monitor display. Also, as some have noted, when I end the McTivia session, the PC does not return to it's original resolution, and has to be reset manually. The PC is located upstairs, the TV in the downstairs family room.
Over the years there have been a lot of devices that try to stream your content to your TV. Most, if not all, require extra wires and hookups. I have a laptop and I usually find myself plugging an HDMI cable into it and then into my TV to watch my content or use it as a monitor. It always sat on the floor or was shoved into a shelving space to sit. I needed something where I could just leave my laptop somewhere and not have to bring it back and forth.
I read all the reviews here and I can't understand why some people see a small picture or why they can't get this great little gadget to work. It took me 10 min to get it going. I also have an apple tv and the apple TV is far superior when it comes to simply watching movies.
With that said, the set-up of this device could use some streamlining. If you are not comfortable setting up home networks and installing software, I would definitely find your local computer geek. The instructions are somewhat vague and this isn't plug & play at all. You will need to mess around with the display settings on your computer and make adjustments for screen location on the TV. Fortunately I am one of those geeks, and I managed to bumble my way through, but not without some frustration.
A nice device for those (few) of still with desktops who want to stop being tethered to a monitor. Allows me to watch streaming content on my larger HD TV. Contrary to what others have experienced, I found set-up very simple with the included CD (I did not download the update and don't intend to). Software itself and device use is fairly intuitive. Does not broadcast 1080p. Line of sight not necessary, which is a huge plus.
I have always wanted to connect to my desktop computer and watch favorite news and political analysis programs on the large TV monitor at a convenient time.Since I do not have a recorder, McTivia Wireless PC to TV came in handy. With it I can locate and watch shows from network web sites when I please.
Answer: Flo, I chose not to buy this because I thought it was expensive. I ended up buying (from apple) for my macbook a cord that plugs into both the TV and the computer and watched tv that way. I understand the Apple TV is wireless and is 99.00 and Apple states it allows you to watch all your downloads on your tv. some man reviewed apple tv on amazon with great detail. I would refer you to look that up first. Good luck.