5.1.8 Tuner Control
Command Feature: This feature allows a device (e.g. TV) to control another CEC
device’s tuner.
The following messages are used for the Tuner Control feature: <Give Tuner Device
Status>, <Record On>, <Select Analogue Service>, <Select Digital Service>, <Tuner
Step Decrement>, <Tuner Step Increment>, <Tuner Device Status>.