And here's what I came up with for the living room and dining room space. Everything is from West Elm (www.westelm.com) and Overstock (www.o.com)
In the living room, we talked about flipping his sofa so that its back faces the kitchen. This way, Eamonn will have a view of both the TV and outside as well as the fireplace. The cable hookup is on the opposite corner of the fireplace, so he can't mount his TV above the fireplace.
The dining room is a small space, I didn't want to clutter it with too many items, hence the very simple image board. Eamonn could put up some personal items on the wall, artwork if he likes.
Also, to add a punch of a bright, fun color, I suggested incorporating some orange tones into the space. Orange complements blue, so this could be added through throw pillows, accesories, artwork, etc. Anything in the orange family tone would work.