Bulb Life in rear projection tv's

I am interested in the toshiba 42" rear projection tv's, however in all the reviews and articles i have read about them on the net, i can not find any information about bulb life, blub replacements (if necessary),cost of parts. Does anyone know of any information regarding bulb life, cost etc?

I know in seperate front projecting projectors for use with screens that they have a bulb life, and i know can be quite costly to replace them.

[Demon]

Just in case you are not 'having a girraffe' or called Mim,

The Toshiba sets use 3 x 7" CRT's.. therefore don't use bulbs.. just 3 little 'tellies'.... and should last 10 years... as with most TV's..

You can however get DLP and LCD rear projection sets that do use bulbs, and I suspect these will be better then front projectors which manage 3000+ hours.. (bulbs range for these between £150-£400..)