The 850 database is pretty extensive. Remember that you are not likely to find the cool discretes on the remote itself. Open the 850 editor and attach the commands for that model to a dummy remote program, then see what it has. I just did that with another thread and found some five discrete input commands for a Mitsubishi TV, and you know how insane their menu approach to input selection is! The 850 had it covered with discretes.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw