No, not without you knowing. I think you answered your own question there. When would have that been possible?
No, flies are disgusting creatures that eat and vomit their own food, then they suck the vomit juices as nourishment.
I don’t know if tech has gone so far that they are able to make flying cameras that resemble flies. But I don’t think your life is that interesting that they would use it on you!
What kind of tv show would that be? I’m quite sure aliens don’t exist. Even if they did how would they be able to broadcast it to another unknown planet without us knowing?