To get more than 2 hr EPG, make sure you're on ECHO7 (119w). Use chan# 120 (Hist)
Turn the unit off with the remote for 3 seconds, then turn it back on.
You'll be greeted with a choice to d/l the guide, or exit. Choose to D/L the guide.
It'll take about 3 minutes, but you'll end up with a 40 hr guide.
If you hit exit, you'll have a 2 program guide. (this is what Is use)
To refresh the 2 program guide, turn the unit off with the remote for 3 seconds, then back on, and hit exit at the prompt again.
Unfortunately, there is no such option for BEV, but they're working on it.
Hope this helps