lol TOS needs a deadpan spoof of ‘Airplane’ or ‘Police Squad!’ standards

Is there anybody here who can enlighten me on why, in certain scenes, light would be shone upon an actor’s eyes in TOS? I believe they stopped that during the first season.

I just want to tell you both good luck, we’re all counting on you.

This is the best Trek meme I’ve seen in a long time. I need a series of memes like this.