The usage of television (TV) is something that has evolved over a number of years now. 

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TV sets are improving day by day and currently, the commonly used TV is digital and smart TVs. 

For a smart TV, there are key things that one needs to confirm before purchasing it. 

Here are a number of important things to check out in a smart TV before purchasing it;

1. Screen resolution

Screen resolutions refer to the sharpness of TV pictures in the form of pixels and horizontal. Most manufacturers do improve their TV resolution from HDTVs to Ultra HD. The advantage with Ultra HD is that the tiny objects on the screen are more visible.

2. HDMI and Connections

Make sure that the smart TV set has enough HDMI ports. The more the ports are the better.

HDMI in a smart TV is important as it allows one to connect things such as; speaker, a game console, and a decoder. Importantly, make sure that the port supports HDMI 2.0 to accommodate future Ultra HD sources.

3. Refresh Rate

This refers to the number of times a picture is refreshed on the screen. Normally, a picture is refreshed at a speed of 60 times per second. Make sure that you look for a screen that has a refreshing rate of 120 times per second or hertz (Hz)