I watched that. Someone or group is really pushing space aliens. I do not know if this was on the same channel but I was fascinated by the huge figures in South America and the crop designs.
I am a HUGE belieber in Aliens but I think crop circles (and other designs) as a means of communication are STUPID, when they could just land near a city and tap someone on the shoulder and say Hi.
While a craft could land and make an indentation, all of the designs are fake.
ALL OF THEM