I would need to know more infotrmation. When you press the guide button on your remote, what displays on your TV screen? If you walk up to the DirecTV receiver box and press the Guide button does it work there?
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IT JUST STAYS ON THE CHANNEL YOU ARE WATCHING. YOU CAN CHANGE CHANNELS WITH CHANNEL BUTTON. THE BLUE BUTTON ON BOX BLINKS WHEN YOU PUSH IT BUT NOTHING HAPPENS.
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I can Help; I've been trained by DirecTV. I have worked as a Technical Support Supervisor for DirecTV for over 5 years
Does the little green light on the remote flash when you press any key?
IF so then you should have strong batteries. go into your menu, go to remote, then scroll down to receiver mode, assuming your are not using an RF remote, the receiver should be in DirecTV mode. Also make sure the slider on the top of the remote is slide all the way to the left.
If that doesn't work, I'd reprogram the remote. if still not working it could be the IR sensor on the receiver. IF it is the receiver RF sensor not working, the receiver would need to be replaced
Do you have a HD or HD dvr receiver? If so do you have it hooked up to a HD tv? If not you need to change your resolution on your receiver to 480 so you ate able to see everything again. I hope this helps.