I have always rented the movies on demand as opposed to PPV, because with on demand I can watch it whenever as opposed to being locked into the PPV times.  Anyway, I got on yesterday to rent a movie and my On Demand channels have disappeared.  They usually show up on Channel 1 or 501.  But now when I try to go to them or pull them up on the Channel guide these channels don't even show up anymore.  I have the program guide set to All Channels, so this isn't the problem.  I was recently having a problem with the program guide not downloading and none of my shows were recording because the program guide was messed up.  So yesterday I reset it, (that didn't fix the problem), I did a check system (that didn't fix the problem), I unplugged it waited then plugged it back in.  After almost half an hour (once the system had restarted, etc...) I finally was able to open my program guide (it was finally fixed), but still it doesn't show any Dish on Demand movies.  I pulled up the website to see what the problem could be, they list a ton of movies on demand that I really want to watch, but I can't because they're not showing up on my tv.  I have the 722 model.  Thanks in advance for any help.