If it's the same programme I don't see what the problem is unless it's something that has a sign language person on screen like some do at odd times.
If you set a recording on the 360 it does seem to pick up the same episode if it's shown earlier than your scheduled time. It also will record the same programme again if the programme is repeated if you actually started a recording after the programme has started and you originally get a partial recording message, unless you have watched it and then deleted the partial recording.
It's like everything new you get used to it with use and some of the missing features are TiVo patented and can't be used with Virgin's parent company Liberty Global's software, "Horizon" which is used everywhere else for streaming boxes which don't have a recording facility so it had to be adapted for the UK to allow recording.
Edited to add that maybe the box is scheduling the recording earlier so if you wanted to add 6 recordings at the same time they wouldn't clash using some AI, but possibly that might not be the case. 🤔