Connect the antenna cable to the back of your TV
The antenna port on a Samsung TV is a round socket labeled ANT IN or RF IN, located on the back panel. It accepts a standard coaxial cable — the same type used for cable TV, with a threaded metal connector on each end. Unscrew the cap covering the port if one is present, then screw the antenna cable connector clockwise until it is snug. Do not force it; hand-tight is sufficient.
If your antenna came with a separate power adapter or amplifier, plug that into a wall outlet first, then connect the antenna cable to the amplifier's output port before connecting to the TV. Check your antenna's manual to confirm the correct connection order — some amplified antennas require power before they function.
Key Takeaways
- The antenna port on the back of your Samsung TV is labeled ANT IN or RF IN and accepts a standard coaxial cable screwed in by hand.
- After connecting the cable, go to the TV's input menu and select Antenna or Air to tell the TV to search for broadcast channels.
- The channel scan usually takes two to five minutes and will find all available stations in your area automatically.
- If the scan finds no channels, try repositioning the antenna near a window or higher up, away from metal objects and electronics that can block the signal.
- Once channels are saved, you can switch between antenna and other inputs using the Input button on your remote.
Switch the TV input to Antenna in the settings menu
Press the Home button on your Samsung remote to open the main menu. Navigate to Settings (the gear icon), then select Broadcasting or Channels depending on your TV model. Look for an option labeled Antenna, Air, or Tuner and select it. This tells the TV to search for over-the-air broadcast channels instead of cable or satellite channels.
Some Samsung models combine this step with the channel scan. If you see a prompt asking whether you want to scan for channels, select Yes or Start Scan when ready. If not, look for a separate Auto Program or Channel Scan option in the same menu and select it.
Run the automatic channel scan
Once you select the antenna input and start the scan, the TV will search for all available broadcast channels in your area. This process typically takes two to five minutes. The TV displays a progress bar and a count of channels found. Do not unplug the TV or move the antenna during the scan — interrupting it may cause the TV to miss channels or save an incomplete list.
When the scan finishes, the TV shows a summary of how many channels were found and asks whether you want to save them. Select Yes or Save. The channels are now stored in your TV's memory and appear in your channel guide. If the scan found zero channels, proceed to the troubleshooting section below.
Position the antenna for the strongest signal
Antenna placement has the largest effect on how many channels you receive. Start by placing the antenna as high as possible — on top of the TV, on a shelf above it, or mounted on a wall. Height helps the antenna receive signals that travel in a line of sight from broadcast towers. Next, move the antenna toward a window or exterior wall; walls, metal objects, and other electronics block the signal, so distance from these obstacles improves reception.
If you have an amplified antenna with a power adapter, turning the amplifier on and off can sometimes improve reception for weak stations. Experiment by moving the antenna a few feet in different directions and running a new channel scan each time. Even small changes in position can reveal additional channels. If you live in a rural area or far from broadcast towers, you may need a larger antenna or one designed for long-range reception — check your antenna's specifications to see what distance it is rated for.
Switch between antenna and other inputs
Once your antenna channels are saved, you can switch between antenna and cable, satellite, or streaming inputs using the Input button on your remote (sometimes labeled Source). Press it to see a list of available inputs: TV or Antenna for broadcast channels, HDMI 1 or HDMI 2 for external devices, and any others you have connected. Select the input you want to watch.
Your antenna channels remain saved even when you switch to other inputs, so you can return to them at any time without rescanning. If you want to update your antenna channel list later — for example, if new stations launch in your area — return to the Broadcasting or Channels menu and select Auto Program or Channel Scan again.
Troubleshoot if the scan finds no channels
If the channel scan completes but shows zero channels found, the antenna is either not positioned correctly or the cable connection is loose. First, check that the coaxial cable is screwed firmly into both the antenna port on the TV and the antenna itself or amplifier. Unscrew and reseat the connections, making sure they are hand-tight. Then run the channel scan again.
If the scan still finds nothing, move the antenna to a different location. Try placing it on a windowsill, on top of a bookshelf, or near an exterior wall. Run a new scan after each move. If you have an amplified antenna, confirm that the power adapter is plugged in and the amplifier is switched on — some models have a small LED light that indicates power. If the antenna has a power switch, try toggling it off and on, then scan again. If you still find no channels after repositioning and checking the power, the antenna may be damaged or your location may be too far from broadcast towers to receive a signal.
Frequently Asked Questions
Do I need a special antenna for Samsung TVs?
No. Any standard television antenna with a coaxial connector works with Samsung TVs. The antenna type depends on your location and how many channels you want to receive, not on the TV brand. An indoor antenna works for most urban and suburban areas; rural locations may need an outdoor antenna or a long-range model.
Can I use the same antenna for cable and broadcast channels?
No. Cable and broadcast signals use different frequencies and require different inputs on the TV. If you have both cable and an antenna, you need separate cables connected to the ANT IN port (for antenna) and the cable input port. You switch between them using the Input button on your remote.
Why does the channel scan find fewer channels than before?
Broadcast stations sometimes change their transmit power or frequency, or move to different towers. If you previously received more channels, try moving the antenna to a new location and running the scan again. Weather, time of day, and nearby construction can also affect signal strength temporarily.
What if the antenna cable does not fit the port?
Samsung TVs use a standard coaxial connector, so the cable should fit. If it does not, check that you are connecting to the correct port — ANT IN, not HDMI or another input. If the connector appears damaged, the cable may need replacement. Standard coaxial cables are inexpensive and available at electronics retailers.
Can I run the channel scan more than once?
Yes. You can run the channel scan as many times as you want. Each scan overwrites the previous channel list, so if you want to keep channels from a previous scan, note them before running a new one. Most people run the scan once after setting up the antenna and again only if they move or want to update the channel list.