Can anyone please tell me specifically what the name of this cable/the connectors are called? It's being used for Virgin Media cable TV, and I need to get a longer one. I know one end is a male coaxial connector.
RG6 coax with female F fitting on one end and looks like RCA plug on the other. Simplest thing would be to get an F fitting then you can use standard coax to extend your connection. https://www.amazon.com/G-PLUG-Coaxial-Cable-Connectors-Ring/dp/B08ZHKK3NV Standard RG6 coax with barrel connector included.
Apparently Virgin can supply up to 3m cable if that length suits you, assuming you're still subscribed to them. Longer then that they send a technician for a fee to custom make and test. But you could probably get away with doing what Kanewolf suggested.