What is the radio shack 3-in-1 remote control code for sony trinitron?

To program a Radio Shack 3-in-1 remote control for a Sony Trinitron TV, you can try using the code 001, 002, or 003, as these are commonly associated with Sony devices. If these codes don't work, refer to the user manual for the remote, which typically provides a full list of codes or instructions for searching for the correct code. Additionally, you can try the code search feature on the remote itself if the manual is unavailable.