Edit: Is instructing a TV so complicated that a very basic, multi-user piece of built-in software with a minimal number of preset (only) commands couldn't do the job? (The last TV I owned was a 12" B&W over 30 years ago; I'm not quite up to date.
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The trick, whether it is instructing a television set, or dictating the "Great American Novel" is not so much in recognizing a limited command set as it is in being able to correctly interpret the various regional, racial, ethnic, native language accents, pronunciation, intonations, voice patterns, [i]etc//i]. Even gender can make a difference. AFIK Dragon Naturally Speaking is about the only consumer grade VR software that runs on a Mac or PC and it costs anywhere from $150 to $999 depending on the complexity of the vocabulary.
