Some manufacturers made all sorts of different codes for instructions between various models of tv and remote. That includes some different TVs only sharing an ’on’ or ’off’ code and not the other.

It’s why many ‘universal’ remotes will tell you in the instructions to keep trying different numbers for the manufacturer until all features work. So… you’ll have to do that. Try all Toshiba TV codes that remote knows. If none of them support all features, hopefully you can tweak button by button!