Thank you for your explanation. Essentially what you are saying is that if you get too close, it might not see both of the lights because they're so far apart. If you're too far, the remote might mistake the two lights which are now appearing to be very close to each other be one light.
Does anyone know the formula for proper triangulating? For example, how would you configure the distance of the two IR sources if you are say ten feet away from the television?