In regards to my previous post with plans for a PB Inspired Display Easel, I've got a few things to say.
I've seen this easel all over Pinterest with people saying that it would be great for a flat screen. While my easel has great structural integrity, I would definitely "beef up" the assembly if you plan to use it for more than picture frames/canvases. Use your kreg jig to attach the fronts and backs of the shelves. Screw the shelves onto each leg. Use a chain instead of picture hanging wire. Mostly, use common sense! If you're planning on putting anything heavier than what it's intended for, modify it.
I agree that using this for a TV would be pretty darned awesome (too bad we only have massive ones in the house or I'd probably try it!), but be careful with your investments.