Q: How many members of the Governing Body does it take to change a light bulb?
A: The light bulb does not need to be changed. The light bulb, in an antitypical way, represents the light that emanated from the Most Holy, from between the cherubs atop the Ark of the Covenant. That light represented the glory, favor, and presence of the Almighty God, Jehovah. In like manner, that light continues to shine just as brightly now as it did then, as Jehovah directs his beam of glory and favor upon his chosen people through His designated channel, the "faithful and discreet slave." (Matt 24:41, 42)
While the light may appear to grow dim from time to time, sheeplike ones will find, by prayerful supplication and heartfelt examination, that any apparent "dimming" is the result of the 'smog' or 'filth' from this system of things that they have allowed to contaminate the lenses of their spiritual glasses.
With this in mind, continued effort should be exerted by all to keep their spiritual glasses clean and streak-free. How can we do this?
Astute ones will remember that the light has not changed, and the answer is the same as it has always been: we can keep the 'light bright' in our lives by regular meeting attendance, personal study, and attendance with meaningful participation at all of our Christian meetings. From time to time, of course, the faithful slave has seen fit to move the 'lamp' to another location in the room, providing a different 'angle' of light. But note that the light itself has not changed.
Furthermore, moving the light from one location to another has an added benefit, one so wonderful only our Great Provider of Light could have foreseen it: the change in angle of the light when it is moved allows it to penetrate our spiritual glasses through sections that have not become hazy or streaked, thus alerting us to the fact that the light had started to 'appear' dim, and this 'new light' allows us to take action now to clean our spiritual glasses, before it is too late.
In this way, what was 'old light' becomes 'new light', and yet is, really, still the same 'old light.' What a wonderful provision from our heavenly Father, the "source of all celestial light"!