I read a post that said to do the following to get an extended EPG on a Cool*at 5000:
To get the EPG(Guide) Hit Guide on the Remote and then the Yellow Button on the Remote and it will go to channel 100. Leave it like that a few minutes and the Guide should be loaded. If you ever get No Info in the Guide just Hit Guide and then the Yellow button to load the EPG again..
However, I am still only getting up to 2 hours of EPG.