blank local channel with blank recordings

[jlpdbs]

Hi

Has anyone had this problem - one of my local HD channels (wotv in western michigan) frequently shows up blank (there is no message - no searching for satellite - just a gray screen). If we tune in one of the other local HD channels and then go back to the offending channel it usually comes in fine. When we record a show from this channel the recording is frequently blank, but if we tune in another recording and then go back to the blank recording it magically appears. For instance, this happened with Heroes this week. This happens on two of my HR20 receviers. My H20 receiver works fine all the time. This seems to tell me me the problem is in the receiver not in the dish, lnb, or cables.

Any ideas or help?

Thanks

John

[David MacLeod]

boy thats a blast from my past.
had 1 hr20-100 do this while other did not.
this was before I moved to swm-8 and was on straight lnb to dvr's.
it was actually an lnb in my case, but that is not usually the case.