To tune RADIO channels, you need to perform "CHANNEL SEARCH". Radio channels will be found along with TV channels.
After that, you need to go to the Radio section (there is a corresponding TV / Radio or TV / R button on the remote control).
Channel search for tuner TD-E-1001
Channel search for tuner TI-D-1103-HD
Channel Search for Tuner TI-T-7860
On TVs with a built-in RADIO tuner, the channels will appear automatically at the end of the list of TV channels (on some TVs, you need to go to the Radio section by pressing the TV / Radio button on the remote control).