In the past three weeks or so, KMGH (ABC affiliate, physical channel 7) and all of the 7.x virtual channels are just plain ole gone on all of the tuners in my house. I'm using a Winegard MS-2002 antenna through a Motorola BDA-S4 amplifier. This setup has been rock solid (and continues to be for other channels) until KMGH just disappeared a few weeks ago.
I cannot tune it using any of the following tuners:
[*]SiliconDust HDHomerun Prime
[*]Samsung UN55C7000 television
[*]LG LC32D television
All of these tuners were able to tune KMGH just fine until a few weeks ago. On all of these tuners, I can tune every other channel (all of PBS, CBS, and NBC) around the ABC 7.x virtual channels without any problems but KMGH and its sub-bands are gone.
Here's a link to the AntennaWEB map for my house:
http://www.antennaweb.org/Stations.aspx ... 104.915096
I have noticed from other posts here that its possible for the VFH circuit to die but from the AntennaWEB link, there are other VHF broadcasts in my area that I'm picking up just fine.
Here in Denver the Big 3 networks all broadcast from the same physical tower on the top of Lookout Mountain so I know that KMGH is no further away than other stations that I am still able to tune okay.
I purchased the antenna through Amazon.com (but the actual seller was GizmosForLife) in July 2011, Amazon.com order number: 103-9193936-4794630
Thanks in advance and my apologies if I missed an explanation for this somewhere else.