It depends on two things:

1. The settings in your picture menu.
2. The content you're watching.

You can change the settings in the TV to "Movie" mode, rather than "Dynamic", which is designed for brightly lit rooms. In other words, it's adjustable to your tastes, and you can change it for dark-room settings.

Movies filmed in the outdoors with higher lighting will be different than some of the more recent Marvell Comics or war movies, where the filming is done in lower lighting. So while it may be "too much" with a bright movie in Dynamic settings, most people can find a satisfying combination of television settings for every movie that they can enjoy.

Thanks for your interest in Samsung products.

--Mr.Samsung

Yes, this model is an Edge Lit LED.

Thanks for your interest in Samsung products.

--Mr.Samsung

The software can vary from laptop models, but if Microsoft Office isn't available pre-installed, it can be downloaded from Microsoft directly, or you could purchase an edition of Office products from Best Buy directly. The download version will offer a trial period of a month before a registration key must be purchased.

None of our laptops come with full versions of Office pre-installed at the time of this posting.

Thanks for your interest in Samsung products.

--Mr.Samsung

What's likely happening is that your wrist is brushing up against the touchpad, which may be quickly highlighting text, and replacing it with what you're typing at the moment.

One recommendation might be to use a USB mouse, and change your mouse settings to "disable the touchpad when the USB mouse is attached". This way, whenever you're typing and have your mouse plugged in, you're not brushing against the touchpad.

The Geek Squad can also help you find this setting, if you're interested in taking your computer in - that way you have a solution for this issue.

Thanks for your interest in Samsung products.

--Mr.Samsung