This last year, I gave away a 1991 JVC 26" CRT, and a 1997 32" Sony Trinition CRT.
They were both working fine, no component inputs on them, I compared them, side by side with a Toshiba 32" flat screen,CRT I bought a couple years back.
The Toshiba wiped the floor with them!!
I enjoy doing comparisons with all the different sets I have, just to see the differences.
Those picture tubes age my friends, they still work and "look" good, but they clearly are not putting out the same image they did when they were new.