How do I connect my Acer 5720-4126 to my HDTV
It depends on what connections your TV has, as well as your laptop. I am not familiar with your laptop, so I'll go with generics. Most laptops have a S-video connection, which also is a common TV connection. I would buy at least a 12 foot cord, otherwise you're sitting in front of the TV really not enjoying whatever it is you're putting on the screen. If your laptop has a HDTV connection like the TV has, simply buy a HDTV cord and go from there. One of the more important things is (usually) you have to have the connections made and the TV on before booting the laptop. If you are lucky enough to have a VGA input connection on your TV, you can get a VGA cable (many of the older monitors have a cord with a plug at both ends, simply use one of these) but you still need to have the cord connected as before, before booting. Usually you have to set up your display after the second display is recognized. Go to control panel, display. Or you can get there from right-clicking on the desktop. Either way, then go to settings, then advanced. Hopefully you have Catalyst as one of your tabs there. If not, I would suggest you get some updates as it is a lot easier with the Catalyst control to set up a second display. Once you get to the Catalyst control, you might have to click "detect" or it might be there - you should see a second display below the main display icon. Right click on it, and select either "extend main onto monitor" or "clone". The difference is: Clone makes the new screen match your laptop screen. This is sometimes annoying, especially if you have family or guests watching whatever it is you are putting on the screen. Extend onto main allows you to show only the focus of your presentation. Think of a Powerpoint presentation you have seen - you did not see anything but the focus, meaning the slides. The problem comes when you want to watch something that does not go onto the extended portion of your screen. You can drag some things to the other screen, such as a window with images, but not all things work in an extended window. Depending on how you watch Hulu, you might be better off to use "clone". If you get it to go full screen, clone is definately the way to go.
Plus, if you use "extend main onto monitor", you have to remember to move the screen back when you're done, otherwise the next time you try to use that program or window, it won't show up on your screen. So try clone first, and if that is acceptable, it causes the least problems.