Sorry ... I don't want to slap you with a cold wet fish.. but DishOnline is a specific term to mean www <dot> dish online <dot> com.
What you mean is "Dish On Demand" as its displayed when you hit the DVR button once, or Video On Demand as the common technology is meant.. to compare with cable/fios etc..
now as to HDCP ... and episodes of 3Stgs from AMC .. I played the 2nd episode titled #08: Beer Barrel without a problem. ... Though with subsequent cursoring around the menus, it showed me originally that when I first go into Stooges I was on 1 of 4 ... but 1 & 2 are both Beer Barrel ... I then went to the next one.. #116: "I'm an Indian!" and that played (didn't watch all the way through.. but it started playing just fine..
stopped there ...
I'm on a 722k with HDMI & Component hookups,
It does have the capacity to play them ... so you might want to PM a Dish IRT and include which episodes gave you the error so that they can get them looked at..