What show was this from?

I don’t remember this too well, but I remembered it being something like Bill Nye or a show like that. What happened was the main character was laying on some kind of table talking about something. Then at the end of the episode the room is dimly lit and the character is still laying on the table. In a very scared voice he looks to the camera and says “Bye.” then you hear some laughter not canned laughter.

I wish I knew what this was from. Does anyone know?