AVerTV for Mac User’s Manual
If an alert about removing action shown on the screen, it means to execute the scanning process will replace the existing program list. Click OK to continue or click Cancel to stop the rescanning.
Manual Add Channel
If you already know a particular channel number for your local transmitter, use Manual Add Channel function to add it by entering the channel numbers and shorten the channel scan.
1.Click 
in the Media Box.
2.Select Manual Add Channel.
3.Enter the channel frequency that you want to start scanning and press Scan.
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