Connect your HDTV antenna
When you connect the TV antenna to the Roku TV through the port, then TV will start broadcasting the local shows available free to air. The number of channels and shows depends on the location from where you are watching. For more information about it, you can go to the Antenna web page.
For accessing the channels, connection to the TV is a must.
Note: You must consider the direction and placement of the antenna on the rooftop. If it is not properly placed, then you will find a problem in receiving the signal. We recommend you to set the direction of an antenna according to the position where you are receiving maximum signal strength.
Can you watch the program being broadcasted right now on HDTV?
Of course, yes you can watch the ongoing programs very easily through HDTV antenna connected to Roku TV. There is an inbuilt feature available by the name of ‘Smart Guide’ in Roku that lets you play the shows and movies broadcasted right now.
Connect to Cable TV source
If you are a cable subscriber, then you will have mammoth of channels to watch both in analog as well as in digital quality. No requirement of a set-top box for such conditions.
Connect your cable wire to the Ant port of your Roku TV. If there is a problem with the signal, then you can contact the local cable operator.
Notes: If your cable TV requires a separate set-top box, then you can connect it easily to the TV. After this, you will be able to watch digital channels. For any query or further clarifications, you can contact local cable operator.
What is an ATSC tuner actually?
This is an authorized system to watch digital quality content through streaming devices in the U.S. It is similar to a TV tuner card that is available inside the TV. All over-the-air networks in the US and Canada are digital in nature whereas Roku supports NTSC.
The primary use of ATSC tuner is to watch the over-the-air broadcast on TV by connecting to HDTV antenna to TV input given as Antenna input. The connection is established with the help of a coaxial cable.