H20 and OTA locals problem

[jch156]

I've got an H20 that used to display my HD locals via an OTA antenna. It stopped a couple of months ago. I've reset several times and done a new setup for the antenna. The receiver can "see" the channels and I have good signal strength, but when I actually tune turn to the channel I only get a black screen. Help!

 

[boba]

Do you have a separate line from the TV antenna or is it diplexed?

 

[jch156]

Separate line running from the antenna.