Most modern televisions come with a QAM tuner (Quadrature Amplitude Modulation in English), which is a chip that interprets digital television signals and allows you to watch certain channels without a decoder. Televisions are not required to have this particular option, but most already include it. You can check a QAM tuner with several methods to see if you can directly receive digital channels.
1-Use the TV’s remote control to open the system menu. Look in the menu for an option to find digital antennas. If your TV can search for digital antenna signals, then it has a QAM tuner.
2-Locate your TV manual and review the instructions for if you mention a QAM tuner. If so, there is a tuner.
3-Find the exact model number of your TV on the manufacturer’s website. The technical specifications for this TV will include if there is a QAM tuner installed in the model or if it is not present.