What remote system are you using? THe only real reason to take the TV apart is if your are using a RF Only system such as Crestron or AMX.. If your using a Pronto based remote or a MX-800, you can set the TV commands to be blasted IR instead of RF. I do this with most of my "RF" systems as it saves a lot of money for the client and doesnt cause any issues.

For what its worth, the Toshibas come apart pretty easy..... Which model is it? Perhaps someone could give you an idea if the screen needs to come off, or if the IR is accesable from one of the removeable panels behind the speaker Grill