Each TV manufacturer uses a different term to describe a rescan. Join 350,000 subscribers and get a daily digest of news, geek trivia, and our feature articles. 1.

The above article may contain affiliate links, which help support How-To Geek. You can usually find a manual by searching the web for the TV’s make and model along with the word “manual.”. That means you have to rescan every time you move, every time you buy a new TV or antenna, and every time a local TV station changes to a different broadcast frequency. Then, when you go to watch TV later, you’re just flipping through that list.

On some TVs, you have to press the “Input” button and go to “Antenna.”. When scanning is complete, your TV will either display how many channels are available or drop you back into a broadcast.

So, most radios have a built-in tuning circuit that simply checks the amplitude response of radio frequencies. 1.

And like any 20-year-old technology, it’s a little quirky.

If your TV routinely scanned for new channels without your permission, you’d have to deal with random 10-minute bouts of silence every once and awhile. You can view the progress on this screen. You can view the progress on this screen.

A good radio signal is filled with a mix of loud and quiet parts (music), while a bad signal is filled with monotonous static or silence.
Join 350,000 subscribers and get a daily digest of news, comics, trivia, reviews, and more. Select Setup or Settings 3. You just need to run a quick channel scan (or rescan), and you’ll be good to go. There are dozens of models of LG TVs. How to Install Third-Party App Stores on Android, How to Hide Most Used Apps in the Start Menu on Windows 10, 10 Great iPhone Home Screen Widgets to Get You Started, Your Keyboard’s Media Keys Work in All Modern Web Browsers, © 2020 LifeSavvy Media. By submitting your email, you agree to the Terms of Use and Privacy Policy. Copyright 2019 Scripps Media, Inc. All rights reserved.

Scanning (or rescanning) is an automated process; you’re just forcing your TV to enter that process. Find and select the “Channel Scan” option in your TV’s menu. It could even happen while you’re watching an important soap opera or football game. If you don’t have a remote, your TV should have a built-in “Menu” button. This material may not be published, broadcast, rewritten, or redistributed. All you have to do set that process in motion through a few simple steps. Press the Home or Menu button on the remote 2. One of those quirks is that, while a TV is scanning, it can’t be used to watch television. Your TV should begin to rescan.

Find and select the “Channel Scan” option in your TV’s menu. Select "Auto Tuning", 2. Scanning (or rescanning) for channels is mostly an automated process. As you move around town (or even around your house) frequencies will shift in quality and availability. This option is sometimes labeled “Rescan,” “Tune,” or “Auto-tune.” If you can’t find the “Channel Scan” option, dig through the TV’s “Settings,” “Tools,” “Channels,” or “Options” menu.

Press the “Menu” button on your remote control. You’d expect a TV to know which local stations are available, like a radio, but that isn’t the case. It’s an easy process, and it’s worth doing for the sake of free OTA TV. Naturally, channel scanning would be a pain on a handheld device or in a car. Select Start Note: It is important to allow the device to completely scan to … (Alternatively, you can hold down the settings button for five seconds to skip the quick menu), 3. If you’re having trouble finding the “Channel Scan” option on your TV, then it’s time to consult the manual. How-To Geek is where you turn when you want experts to explain technology.

If radios don’t need to perform tedious rescans, then why can’t TVs automatically scan for channels? Select Auto Tuning or Auto Program 5. ALWAYS refer to the User's Guide for your specific TV for complete information. Head to our antenna home and select the model of TV you own. There are numerous models of non-smart TV's from LG, too many to have specific instructions by model. So, the FCC will eliminate the need for channel scanning in ATSC 3.0. There’s nothing wrong with it; it’s just got a few quirks. Channel scanning can take upwards of 10 minutes. The Channels submenu on LG Smart TVs. As a result, all TVs are going to lose track of local channels slowly. As we mentioned earlier, the FCC is transitioning to the ATSC 3.0 broadcast standard.
Since we launched in 2006, our articles have been read more than 1 billion times. That’s perfectly normal. So, you’re trying to watch free over-the-air TV, but you can’t find any channels. Well, they do—kind of. Select "Channels," then "Channel Tuning". These instructions are from LG's support website. Once your TV starts scanning for channels, find something to do. The instructions below should work on most LG televisions, but there may be minor variations by device. When you press “next” on your radio, it just runs some frequencies through the tuning circuit and locks in on whatever has a mix of loud and quiet parts. The instructions below cover the most popular models, but may not work for all. (Image from LG's support website) 4. Plus, entirely new channels could pop up in your area, and your TV won’t know that they’re there. In this past, this roughly translated to “if the TV ain’t working, scan for channels.” But right now, America is undergoing a broadcast TV transition. And while these steps are different for each TV, the process is pretty similar on every TV out there. Remember, we’re dealing with 20-year-old technology. Well, when you scan for channels on a TV, it’s basically performing that process for you.

Admittedly, this is a clunky, somewhat annoying process. If you've just bought a new TV, or are rescanning to get NewsChannel 5, please follow the instructions below.

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