A simple google search for "crt disposal" turned up a several articles talking about exporting tubes and recylcling. Kinda interesting... i did not realize we exported used tubes. Sure hope they aren't shipping out any roundies! Here are two that I read... the list was endless...
http://yosemite.epa.gov/opa/admpress...6!OpenDocument
http://www.mass.gov/dep/recycle/reduce/crtrsbz.htm
Here's a bit about what one article says...
What happens to my old computer or television?
Often, your computer will be reused by a charity or school. Or, it may be taken apart and recycled. The different parts of the computer or television are used in many different ways:
The glass CRT is either returned to a manufacturer and made into a new CRT, or sent to a smelter where the lead is recovered and recycled.
The plastic housing is ground to smaller pieces and recycled for use in various items such as retaining blocks and pothole mix.
Circuit boards, chips, and other parts can be reused to repair or upgrade older electronics or recycled for their scrap value.
Metal components will be separated and sold for their scrap value