I ran across a few archive articles about the SFP tube. The first SFP TV in the US was the 34XBR910 with 1400 horizontal vice 34XBR800 which was the last of the XBR's Non-SFP had only 847 lines as per test patterns. This was a major selling point as nothing at the time could produce more lines. True technology has changed, but there are no more R&D bucks spent on tubes unless they are for studios use or the "Qualia 015' in Japan. The SFP was developed in 2000 in Japan in the 36DZ900 model. Once the technology was made you tweak it as required, 30 inch TV's require a digital tuner so you put an engineer infront of a monitor with CAD and he makes a space for the tuner and Cable Card. Bet you the same modules or a version are used in all sony TV's. Voila you have the 34XBR960 with minimal costs incurred. Two weeks ago I picked up 2 34XBR960N's on sale for 1199 for the superbowl, he honored my sale since I put money down on them. At the time I looked frantically for the 960N from an authorized seller. Two merchants mentioned they were receiving new 960N's in which told me Sony had tubes left over from Rancho that were in the pipeline. There is still a need for tubes, but not at 1900 bucks since the average consumer would get "something pretty to hang on the wall' for less. The XBR nametag still means something so they could still sell an XBR at 1200 or so, but not the SFP so it was decided to scrap it. They must have liquidated the last series of runs for the 960's so the retaillers who could move them had nice margins to play with.