It's the followup line that got me on a recent rewatch. For context Marty is trying to show a video, played back on a futuristic camcorder, and The Doc is more amazed by the camera.
"This is truly amazing, a portable television studio. No wonder your president has to be an actor, he's gotta look good on television."
"This is truly amazing, a portable television studio. No wonder your president has to be an actor, he's gotta look good on television."