from multiple channels to only one channel

[Penny_11]

My LG digital TV, connected to antenna, used to work OK, but recently it only receives one channel. We plugged in rabbit ears to see if the outside antenna was faulty, but that didn't fix the problem. We can't find anything like a channel scan on the remote to help us fix the problem

 

[popatim]

Channel scan would be in the setup menu of the tv