I didn't end up needing to, but I had an idea for this if my cab would've needed it. Since the TV would be decased, take the back of the case, and use a portion of it to make the "bulge."
It would take some work cutting it and positioning it, so it looked nice. And it would probably have to be painted to look decent.
Just my 2c, though, as I didn't have to follow through with it, so I don't have an example to show you.