It's a painful moment when your child or someone a lot younger then you is baffled by the cassette tape or a phone book that comes on paper, but if you feel old now just wait until you witness this. 

Chris Hughes and Kem Cetinay were absolutely baffled by a complex piece of technology called a rotary phone. The two were simply trying to call reception while taking part in Channel 4's Celebrity Hunted. 

The two first tried to see if the phone could be voice activated, but Chris soon came to the rescue remembering that he had seen a rotary phone being used on TV Show Heartbeat. 

Watch the full video below if you want to feel REALLY old!