I loved this series as a kid, they used to play them right after school on weekdays. I just loved when that intro came on. It would be fun to watch them again. I don't remember what season they were but my favorite episodes of the series were the one with William Shatner on the plane and the one where this girl thinks she is ugly but she is actually beautiful and everyone around her looks like a monster. Those are the two that stick out to me.
"You unlock this door with the key of imagination. Beyond it is another dimension: a dimension of sound, a dimension of sight, a dimension of mind. You're moving into a land of both shadow and substance, of things and ideas. You've just crossed over into... the Twilight Zone."