Steve,
There are debates about the best way to disable svm from these TV's. Here is what I did - and it was a snap.
1. Take off back cover from TV.
2. Look at the board that is connected to the power cord.
3. Approximately in the middle of the board, there is a small white plug with white and gray wires sticking out from it. This is the main power for svm. Pull this plug and tape it somewhere where it won't get in the way.
4. Put cover back on.
This is a 5 minute process that is perfectly safe.
Stefan Antwarg