If by their own you mean one of numerous other cable companies that they purchased then yes. There used to be a plethora of small cable companies in the UK. Now

If by their own you mean one of numerous other cable companies that they purchased then yes. There used to be a plethora of small cable companies in the UK. Now there is only Virgin. The widespread availability of high quality ADSL does seem to do a good job of keeping them honest though. I've been a pretty satisfied customer of them for many years now.