TV and Projector positioning in new house-help!

[LaurasOtherHalf]

So after the sum total of 13 days we've managed to spot a house, have mortgage offered, do a deal and we're on the move to our dream house

One thing I can't get my head around is where to put the projector screen & TV

Currently we have the below;

This works great for us, no huge speakers everywhere, electrically rolls away when not needed an we've got an L shaped sofa so we can sit the other way to just watch our lcd TV.

The new house has the living room like this;

Ignoring the decor, what you're looking at is the living room and summer room (which we hope to make into our posh dining room) and I'm thinking of the TV above the fireplace (which will be rebuilt) and the projector screen above that. But as you can obviously tell, the screen is much bigger than the chimney breast.

I've had a separate cinema room in the past but I'd prefer it in our main family room as I find it works for us better that way. Any ideas? Dimensions copied off the sales brochure are as follows;
Living Room - 5.56m x 5.08m (18' 3" x 16' 8")
Summer Room - 5.28m x 2.97m (17' 4" x 9' 9")
These might need a pinch of salt as one dimension of the summer room should obviously match the living room but put it this way, it's a pretty decent sized living room!

All help appreciated!

[LaurasOtherHalf]

Plus the room beyond the living room is presently used as a summer room, which as you can imagine is south facing. That would mean any other wall but the fires place will mean shutting out the light.

Would this cause a problem with the LCD above the fireplace anyway?

So far I've found this image of something that might work;

[LaurasOtherHalf]

Frances The Mute said:

In the photo of the new living room, what it to the right hand side, behind the sofa?

An internal window to the hallway (sort of a design feature).