system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:What is the difference between PC monitors and HDTVs?

Whenever I walk around electronic stores, I often see PC monitors lined up for display. The thing that I notice is that often times not only do these monitors look outdated, but they seem overpriced. So what's the main difference between monitors and HDTVs?

This may work better if you are a gamer and don't mind bigger displays, but couldn't you get smaller HDTVs and connect it to you PC via HDMI cables and use that as a monitor? After making sure you go into display setting and having you PC detect and use the TV as a sole monitor in case of laptops, of course.

Is there a significant disadvantage to using HDTV as monitor instead of dedicated PC monitors?
gpt
Many monitors are targeted at people who are using it to either play video games or video and picture editing.

A good monitor for editing will feature incredibly **high contrast ratios** along with **deeper blacks** and a brighter display. These features are not quite as sought out on TVs as they are meant to be watched from a further distances anyways.
On the other hand a good monitor for gaming will mainly focus on **input lag**. This is the time a monitor will take to register any changes from the input. For the more hardcore audience they require instant feedback or very fast response times. It can be pretty bad on TVs ranging from 15ms (milliseconds) to 100ms. Gamers often look for input lag lower than 5ms to optimize game performance.

These couple of features along with some other perks such as good build quality and overall design aesthetics can bring up the costs of 24" monitors to match those of a 60" HDTV.