Update 3 (9/14): According to Dish Network's official Twitter account, things should be up and running again now. We have identified the issue and based on our current estimates, the situation should be corrected overnight and your HD channels should be restored in the morning.
In the meantime, you can unplug your receiver from the main power source and plug it back in to see your standard definition channels.
If you currently hide standard-def channels, press menu, then 8, then 1 and uncheck the "HD only" box to see the working channels for now.
We'll keep checking for any updates on the situation, but for now you're on your own in a 480-line wilderness, so good luck.
The really bad news comes when we learned that bird is responsible for carrying many HD channels and HD locals (check the links below for a list of all channels on 129).
Switching over to SD channels will let you watch (if that can really be called watching TV) most content in the short term -- DBSTalk posters advise hitting menu and selecting 1 on your remote to pull up the guide if you're having trouble.
In Western Europe, 59 million television households were equipped with EPGs at the end of 2008, a penetration of 36% of all television households.
The EPG Channel would later be renamed Prevue Guide and go on to serve as the de facto EPG service for North American cable systems throughout the remainder of the 1980s, the entirety of the 1990s, and – as TV Guide Network or TV Guide Channel – for the first decade of the 21st century.
Data used to populate an interactive EPG may be distributed over the Internet, either for a charge or free of charge, and implemented on equipment connected directly or through a computer to the Internet.
Television-based IPGs in conjunction with Programme Delivery Control (PDC) technology can also facilitate the selection of programs for recording with digital video recorders (DVRs), also known as personal video recorders (PVRs).
[Thanks to everyone who sent this in] Update: Dish has a new webpage up to help customers deal with the situation here, while those who can't get through on crowded helplines are advised to check out @dish_answers on Twitter. - Another helpful HD Channel Outage ENGLEWOOD, Colo., Sept.
Update 2: Dish's site linked above indicates it has "identified the issue" and estimates it will be fixed overnight. 13, 2011 - We are currently experiencing an interruption affecting the 129 orbital satellite location causing an HD signal outage in some areas.