"Washington, D.C. (March 3, 2008) -- Sony said today that it will stop production on all tube TVs (CRT -- cathode ray tube) by the end of the month."
They stopped making smaller screens in 2003.
And from CDW site
"ONY PVM-20L2MD 20IN MEDICAL MONITOR
Mfg. Part: PVM-20L2MD | CDW Part: 561219
This product was discontinued as of Friday, May 11, 2007. Call for availability. "