Today’s televisions can display video from a variety of signal sources. For example, cable television, satellite television, the HDMI signal, and various video transmission protocols on computer networks.
If you have a TV released after 2020, it may have ALLM technology, automatic detection of the HDMI signal, if you turn on ALLM mode, the TV will automatically detect the signal and switch to play video from HDMI, but other signal sources will not they change automatically, you have to do it manually. Here’s how you can do it with or without the remote, using the controls on your TV.
The controls for changing signal sources are basically the same on different TVs, but the appearance of the interface may vary slightly depending on the software version
How to change the source on Samsung TV with the remote
Changing the source with the remote control is convenient and practical. Using the remote control is the main way to control the TV. This is assumed by the manufacturer, so the button for selecting the source is on the remote control.
How to Change the Source on Older Samsung TVs Using a Standard Remote
Older televisions, or those controlled only by a standard remote control, use a simplified operating system. Therefore, the visual interface on the TV screen is minimized. To select a signal source, take the remote control, there is a Source button on the top right, press this button. This button is present on both standard remotes and smart remotes. Sometimes it may just be a square with an arrow pointing in, this is the logo for changing the source on the TV.



Pressing the button accesses the TV source change menu. This menu is at the top of the screen. The menu is displayed for about 6 seconds, during which you must start working with the menu or it will disappear, but you can always bring up the menu by pressing the source button again. Some remotes also have an HDMI button that takes you to a menu of active HDMI sources.

Use the left and right buttons on the remote to select the desired source and press the center input button. The TV will switch to receive the signal from the selected source.
For ease of selection, normally inactive sources are highlighted in gray and active sources in a brighter color.
How to change the source on older models of Samsung Smart TV using the remote control
Since the beginning of the production of Samsung Smart TVs there have been several types of remote controls, the source button is on all Smart TVs. As a rule, the button is located at the top and is labeled, it is very easy to find. After pressing the button on the remote control you get to the signal source selection menu, the appearance of the menu may vary slightly depending on the software version, but the principle is the same.

How to Change the Signal Source on New 2016 Samsung TV Models Using a Standard or Smart Remote
The new Smart TV models have more powerful processors, so the menu is more animated. The source selection order itself is slightly different, and the One remote that came with 2016 TVs (K, M, N, R, T, A, QLED series) no longer has a Source button. If you have a regular controller, you can press the Source button and get to the source selection menu. If you have a TV with a smart remote control (One remote), you need to do the following.
- Press the Home button on the One remote control and you will access the home menu.


- Using the circular pad control on the One, select Source.
- Press the Enter button. You will see a menu with available fonts.
- Select the desired font.
- Press the Apply button, the TV will switch to receiving the signal from the selected source.
How to change source on samsung tv without remote
Now about how to change the signal source without the remote control. The controls for the TV are located on the body of the TV. Depending on the model, these can be buttons or a joystick. If your TV has buttons, usually located on the side of the TV, you can change the signal source by pressing the source or menu button.
New TVs usually have a remote control, the joystick is located at the bottom of the TV, very often it can be found next to the logo. To change the signal source, do the following.
- Press the button to open the TV menu, just like pressing the menu button on the remote control.
- Move the joystick left to select source change mode in the menu.
- Press the joystick to open the list of external sources.
- Select the desired font
- Press the joystick button.
The TV switches to the selected source.