Yea, a 20" CRT is going to be more than 10 years old.
Going by the internet, the last mass produced CRT TV was by LG in 2008. Which is interesting because LG is putting out slammin' OLED TVs now.
That was me and no, I don't think it will be worth it.
For a real prospect sure, for some 17 year old lottery ticket or shuttle-bound bullpen arm? No thanks.