Most older TVs cannot connect to WiFi directly, but you have several ways to add that capability

If your TV was made before 2010 or doesn't have a smart TV system built in, it almost certainly cannot connect to WiFi on its own. The good news is that you don't need to replace it. You can add WiFi capability using a separate device that plugs into your TV's HDMI port, USB port, or older video connections. The method you choose depends on what ports your TV has and what you want to watch.

Older TVs typically have HDMI ports (flat rectangular ports that became standard around 2008), composite video ports (the three colored plugs—red, white, and yellow), or component video ports (the five colored plugs). Some very old sets have only an antenna connection. Knowing which ports your TV has will determine which devices can work with it.

Key Takeaways

  • Streaming devices like Roku, Amazon Fire Stick, and Apple TV plug into your TV's HDMI port and add WiFi capability without replacing the TV.
  • If your TV has only composite or component video ports, you can still use streaming devices with an HDMI-to-composite converter, though picture quality will be lower.
  • Casting devices like Google Chromecast and AirPlay receivers let you send video from your phone or computer to an older TV wirelessly.
  • Some older smart TV systems (like Roku TV or Samsung Smart TV from 2010–2015) may still connect to WiFi if the manufacturer's servers are still running, but this is becoming less common.
  • Connecting an older TV to WiFi does not require any internal changes—all the WiFi hardware sits in the external device you plug in.

Streaming devices that plug into HDMI ports

If your TV has an HDMI port, a streaming device is the simplest way to add WiFi. These small boxes or sticks plug directly into the HDMI port and connect to your home WiFi network. Once connected, they let you watch services like Netflix, YouTube, Hulu, Disney+, and others without needing a cable box or antenna.

The most common options are Roku (available as a stick or box), Amazon Fire Stick, Apple TV, and Google TV devices. Each one has a different remote and slightly different menus, but they all work the same basic way: plug in, connect to WiFi, sign into your streaming accounts, and start watching. Most cost between $30 and $150 depending on the model and features.

These devices need power, so you'll need an outlet near your TV or a long power cable. They also need a clear line of sight to your WiFi router for the best connection, though they will work through walls if your router is strong enough.

Connecting TVs with only composite or component video ports

Older TVs that don't have HDMI ports use composite video (the three colored plugs) or component video (the five colored plugs). You can still use a modern streaming device with these TVs, but you need an HDMI-to-composite converter or HDMI-to-component converter as a bridge between them.

The converter plugs into the streaming device's HDMI port on one end and into your TV's video ports on the other. This adds an extra step and an extra piece of hardware, but it works. The trade-off is that picture quality will be noticeably lower than HDMI—colors may look duller and the image may be softer. These converters cost $15 to $40.

If your TV has only an antenna connection (a round threaded port), you would need a converter that goes from HDMI to RF (radio frequency), which is much less common and harder to find. In this case, it's usually easier to use a casting device instead.

Casting devices for wireless video from your phone or computer

A casting device works differently from a streaming device. Instead of having its own apps and remote, it receives video sent wirelessly from your phone, tablet, or computer. Google Chromecast and AirPlay receivers are the most common types.

Google Chromecast plugs into an HDMI port and lets you send video from Android phones, iPhones, tablets, and computers to your TV. You open an app like YouTube or Netflix on your phone, tap the cast button, and the video plays on the TV. AirPlay receivers work the same way but are designed for Apple devices (iPhones, iPads, and Macs).

Casting devices are useful if you want to watch something on your phone and put it on the big screen, or if you want to mirror your computer's screen. They're less useful if you want to sit down and watch a full movie or show without holding your phone, since you need the phone to control playback. Most casting devices cost $25 to $100.

Built-in WiFi on older smart TVs

Some TVs made between 2010 and 2015 have WiFi built in but may not be connecting anymore. Older Samsung Smart TVs, LG Smart TVs, and Roku TVs sometimes had WiFi chips that worked fine when they were new but stopped working when the manufacturer shut down the servers that ran the apps.

If your TV has a smart TV system, try going to the network settings menu and seeing if WiFi is an option. If it is, try connecting to your home network. If the TV connects but apps don't load, the manufacturer's servers are likely offline and there's nothing you can do—you'll need to use a streaming device instead.

Some very recent older TVs (made after 2015) may still have working WiFi and app stores. Check your TV's manual or the manufacturer's website to see if your model is still supported. If it is, you may be able to update the software and get everything working again.

What to check before you buy a device

Before buying a streaming or casting device, check what ports your TV actually has. Look at the back and sides of the TV for HDMI ports (flat rectangular slots), composite ports (three colored plugs), component ports (five colored plugs), or an antenna connection. Take a photo if you're not sure.

Also check how many HDMI ports your TV has. If you have a cable box, game console, or other device already plugged in, you might not have a free HDMI port. In that case, you can buy an HDMI splitter or switch to free up a port, but this adds another piece of hardware.

Finally, make sure your home WiFi network is strong enough to reach your TV. If your router is far away or in another room, the streaming device may buffer or drop the connection. If this is a problem, you can move the router, buy a WiFi extender, or use a wired connection if the device supports it.

Frequently Asked Questions

Can I use WiFi on a TV that's 20 years old?

Yes. As long as your TV has an HDMI port or composite/component video ports, you can plug in a streaming device and use WiFi. If your TV has only an antenna connection, you can still use a casting device by connecting it to a separate display or using a converter, though this is less practical.

Do I need to pay for WiFi to use these devices?

No. You need your existing home WiFi network, which you already pay for. The streaming devices themselves are one-time purchases. Many streaming services (Netflix, Hulu, Disney+) require paid subscriptions, but free services like YouTube, Pluto TV, and Tubi work without a subscription.

Will a streaming device work if my TV doesn't have a remote?

Yes. Streaming devices come with their own remotes. You won't need your TV's remote at all once the device is plugged in and connected. The streaming device's remote controls everything.

What if my TV only has one HDMI port and it's already in use?

You can buy an HDMI splitter or switch for $10 to $30. This lets you plug multiple devices into one HDMI port and switch between them. Some people also unplug devices when not in use, though this gets annoying quickly.

Is the picture quality the same on an old TV as a new one?

No. Older TVs have lower resolution and smaller screens, so streaming video won't look as sharp or detailed as it would on a modern TV. However, the streaming device itself doesn't affect picture quality—a Roku on an old TV will look the same as a Roku on a new TV of the same age and size.