Can you live with such a small set. To get your height devide 1/2 of the diaginol, to get your width devide 8 into diaginol then muliply it by 7. A 34 inch diaginol will actually be 17 inches high by 29.75 inches, less than 30 inches across.
I have a RCA F-38310 my diaginol is 38 inches which comes out to a 19 inch height and 33.25 inches wide and I think my HDTV is small. I had a 30 inch before and sold because it as too small, but it's your money and you will have to live with it.
Just don't try fitting it into a entertainment center, my set has 3 fans trying to keep it cool I have it free standing on a locking stand. If your trying to fit into EC your shortening the life of your investment, this not analog TV and runs hotter; one reason your line doubler.
