I'm sorry to hear that, I was with BT before changing to Virgin. There's an option on the BT guide to set reminder for programmes. It's one of the many things I'm already missing about BT.
You can do this on Virgin. Just highlight the programme in the guide, press ok & select “record & remind”. You might not need to record it, but due to the way the V6 operates it has to record it, as there is not a dedicated viewing only tuner.
As a Very Insightful Person, I'm here to share my knowledge. I don't work for Virgin Media.