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To repeat the channel scan, from the Home screen menu, navigate to Settings > TV
inputs > Antenna TV > Scan again for channels. Then select Start finding channels to
begin the channel scan process. The screens and options that appear during this
process are identical to those described in How do I set up the TV tuner?
HDMI
®
mode (4K models only)
On 4K (UHD) TVs, you can independently configure each HDMI
®
input to match the
capabilities of the connected device. From the Home screen menu, navigate to
Settings > TV inputs, and then select an enabled HDMI
®
input. Next, select HDMI
mode and then select one of the following settings:
• Auto – Let the TV determine the best setting. Use this option unless your
HDMI
®
device does not correctly communicate its HDMI
®
version compatibility.
• HDMI 1.4 – Configure the input for compatibility with HDMI
®
version 1.4, which
supports a maximum refresh rate of 30 Hz at full UHD resolution. Most HDMI
®
devices will work correctly with the TV in this mode.
• HDMI 2.0 – Configure the input for compatibility with HDMI
®
version 2.0, which
supports a maximum refresh rate of 60 Hz at full UHD resolution. You must use
this mode to view HDR content from the device connected to this HDMI
®
input.
However, note that many older HDMI
®
devices do not work correctly when the
TV’s HDMI
®
input is set to this mode.
Control by mobile apps
You can choose the level of control you want to allow your TV to accept from
external devices, such as smart phones, tablets, and virtual assistants. Device connect
settings enable other devices, including the Roku Mobile App, to control your TV over
the local area network in your home.
To adjust the level of external control access:
1. From the Home screen menu, navigate to Settings > System > Advanced
system settings > Control by mobile apps.
2. Select Network access.
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