I couldn't imagine why the Wally would have the issues you stated since any satellite receiver only interprets whatever signal it sees at it's satellite input. The receiver only indicates when a properly pointed satellite antenna is locked in to all 3 satellites, and if sat signal is sufficient it will download and properly display subscribed programming.
We have no issues with our VIP 211 receivers in terms of displaying video content exactly as our Hopper does at home, no variance whatsoever on the two HDTVs mounted in our rig. When video on an HDTV is not displayed or formatted properly it is primarily due to insufficient signal where only SD video can be viewed, problem is usually weak signal from outlying satellites.