Helping people with computers... one answer at a time.

Leaving your TV hooked up all the time is unlikely to pose a danger to your equipment as long as you consider a few issues.

I have a PC to TV with HDMI hookup. Can I leave it hooked up all the time? Will it damage anything if I do?

In this excerpt from Answercast #10, I examine the ramifications of leaving a computer hooked up to a TV permanently and suggest a way to minimize hardware damage and save on electricity.

TV attached to computer

You certainly can leave it hooked up all the time. I don't see any potential damage.

The only time that I can think of as an issue is if you're in an area that gets lots of thunderstorms; then sometimes a lightning strike can travel from one device to another.

But it is highly, highly unlikely (even in those lightning prone areas) that this particular connection would carry anything that would concern me.

Protect the monitor

The only thing that might impact your system is leaving the screen on all of the time.

You do realize that a TV left on all the time, not only is it using electricity, but (depending on the technology of the TV) you could be shortening the lifespan of the TV itself.

So, if you're talking about just leaving the physical connections in place, not a problem.

Next - Does repartitioning and reformating a hard drive completely clean it?

Article C5222 - April 18, 2012 « »

Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

Not what you needed?


April 20, 2012 8:36 AM

I have been doing this quite awhile now. I have had no problems. However, my utilities were included in the rent. Now that I am moving and paying my own again, I will not be leaving it on all the time anymore. I have better things to do with my money than to give it to electric company. (Like buy more computers) :)

April 20, 2012 8:48 AM

Actually, there may be a concern. I just read an interesting article

The basic idea is that keeping your web enabled TV is just another server connected to the internet. If you don't protect it, it is open to hacking. His example of the cable company set to box was a giggle.

The lesson I take away is to make sure to have at least a router between your TV and it's internet connection. Otherwise your TV will become a spam bot.

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