Sony a9 Instruction Manual page 186

Note
• Steps  and  can be set in either order.
HDMI Info. Display
Selects whether to display the shooting information when this product
and the TV are connected using an HDMI cable (sold separately).
MENU 
[HDMI Info. Display]  desired setting.
On: Displays the shooting information on the TV.
The recorded image and the shooting information are displayed on the
TV, while nothing is displayed on the camera's monitor.
Off: Does not display the shooting information on the TV.
Only the recorded image is displayed on the TV, while the recorded
image and the shooting information are displayed on the camera's
monitor.
Note
• When this product is connected to a 4K-compatible TV, [Off] is selected
automatically.
• If you set [
is connected to an HDMI device, images will not be displayed on the monitor.
TC Output
Sets whether or not to layer the TC (time code) information on the
output signal via the HDMI terminal when outputting the signal to other
professional-use devices.
This function layers the time code information on the HDMI output signal.
The product sends the time code information as digital data, not as an
image displayed on the screen. The connected device can then refer to
the digital data to recognize the time data.
MENU 
desired setting.
On: Time code is output to other devices.
Off: Time code is not output to other devices.
GB
186
(Setup)  [HDMI Settings] 
File Format] to [XAVC S 4K] and shoot movies while the camera
(Setup)  [HDMI Settings]  [ TC Output] 