The picture tube itself also holds a high voltage (30kv+) that must be discharged when servicing. I used a looong screwdriver with a wire clipped between the chasis and the tip. The bigger the tube (or projector gun) the higher the voltage.
I collected several dozen old TV's, placed them in front of my house, and turned them on for holiday lighting.
All the neighbors were so awed, they wanted to buy them for their house decorations!
I made over $200, and got them hauled off for free!
It's amazing what people will come get for if you post it for free on Craigslist. I've disposed of all kinds of junk just by putting it up on Craigslist. I'd be really surprised if no one came to get a perfectly good working TV.