No, you cannot stream channel from your mobile devices to the TCL TV. But you could mirror/cast the video from your mobile devices to the TV.
Here are the steps about how to mirror/cast the video from the mobile phone to the TV for your reference:
For iPhone & iPad:
On your TV, download the App Airscreen.
Press the Settings
button on the remote, and select Settings --> Apps --> Google Play Store:
Search Airscreen on Google Play Store and install it.
Open the APP Airscreen on your TV and select Help to select the operating system of your mobile devices.
Press OK button on remote to open the App AirScreen:
Press OK button to continue.
Press Back button to exit the Connection Assistant.
Go to the Question mark --> Choose device -->Phone/Tablet --> iOS/iPhone --> Entire screen or In-app content on the App.
Ensure the iPhone or iPad connect to the same Wi-Fi network as the TV, then open Control Center on your iPhone/iPad, and tab AirPlay.
Choose the name of your TV and connect your TV.
If you want to exit the mirroring, you could select stop mirroring on the iPhone:
For Android devices:
Download MagiConnect App on your TV. If your TV has installed the App MagiConnet, please open it on your TV, and select Wireless Display and turn it on.
2. Turn on Cast on your mobile phone and search your TV’s name.
On your TV, a window will pop out, and please select accept, then you could mirror the videos from the mobile phone to the TV.
Or you could download the MagiConnect App on your mobile phone, and then cast the video and pictures through the App.
If you have a concern about the instruction, please feel free to call the TCL hotline for further help.