Yes bigger is correct but I missed that ajant is physically limited on width. To be clear I would just fill the entire space between the speakers with a tv/screen.
If the TV is behind the plane of the speakers it will not affect the sound much. I have done sighted A/B with my screen between the speakers and removed. I am not convinced a TV is anymore reflective than dry wall. Horns greatly limit the reflections off the front wall too and will be less effected by a TV.
Technically a viewing angle of 60% feels about right and that happens to be the typical audiophile setup too (equilateral triangle).