That does make sense though. If there is not signal (or intermittent signal loss) coming on the satellite and transponder that spools the EPG, then it won't get a good download and the guide will be freaking out.
Tony, EA here in Rochester, NY. Lost a bunch of HD channels earlier this evening. Played around with several reboots and got them back. Now cannot get the guide to repopulate... it just sits and cranks well beyond the five minute expectation. As a result no timers are triggering.