I've been meaning to post this for many months. For those of you whose loved ones have consistent problems with the remote control, this is a great way to "fix" it so it won't cause as many problems. Although this is reversible, you'll need to buy another for yourself as long as the first one is "fixed".
The goal is to diable all buttons which are unnecessary and problematic, leaving our loved one with a simplified remote that is less likely to mess things up. The only tools you'll need are a screwdriver and a pair of scisors.
Step one: Locate and loosen the screws. There will be a few little screws on the back, and there's a good chance there are one or two behind the batteries.
Step two: Open the remote. The buttons should come away freely, and you should see a little circuit board on the other half.
Step three: Note the little squiggles on the circuit board. These are the contact points where the buttons touch. Decide which buttons you want to keep, and cut a piece of paper to cover up the rest. My grandmother Laurette uses the TV only for Larry King in the evening, so I've diabled all but the power and volume buttons for her. Your piece of paper can be any shape required to cover or uncover the necessary buttons.
Step four: Put it back together. You're done! If you want, you can also physically remove buttons from the remote. This is not reversible, but may be necessary to facilitate independent use of the remote. Simply cut or pull them off while the remote is open. In this example I removed the channel buttons because when she wanted the volume up she would always use the up arrow, not the right. With the channel buttons gone she has no trouble.
If you didn't remove any buttons, you can remove the paper at any time and the remote will return to its normal function.