ncbill
Thinks s/he gets paid by the post
Can that shelf be removed or cut out for extra space?
Width was my limitation. I could have squeezed a 52" TV in our entertainment center but there wouldn't have been any room to fit my fingers around the edges. The difference between a 49" and 52" didn't seem all that significant so I went with the smaller size and haven't had any regrets.
My first entertainment center was limited to a 19" screen. I built a new one when I bought our first 42" plasma TV. I left a little extra room in case I needed to replace the TV, which I did. See ET Center 1 & 2 halfway down on this page: Anthony's Miscellaneous Woodworking Projects
I built the new entertainment center to be modular. If I "really" wanted to have a larger TV I could remove the two side shelf units to accommodate up to a 103" TV! Or I could build narrower shelf units to accommodate something in between.
TV Size Calculator:
https://www.blitzresults.com/en/tv-size/
Yes, width is the limitation, which is why I'd have to use a mount to let any larger TV 'float' out in front of the space, held by an articulated VESA mount attached to the underside of that shelf.