This looks like a collection of some pretty nice gear. Most people like Pass with Maggies. It's likely the Wadia and Bryston aren't getting along with the Maggies. Its not always easy getting digital to get along with Maggies. That is why they will have to pull my ModWright Sony out of my cold, dead, fingers. The Harbeths are probably more forgiving.
I really think the suggestion to pull the TV out is an excellent one, just to see what happens. If that improves the sound, and the TV has to be there, then the maggies aren't going to work for you. I would expect the TV to give you problems, even if it isn't the cause of the "dry lifeless" issue. Dipoles are tricky with respect to what is behind them. It could be the TV is selectively reinforcing or causing cancelation of certain frequencies giving you a tonal balance that is not pleasing.
I love my Maggies, and wouldn't have anything else. But they can be a real pain sometimes. They want what they want.
