Does anyone else find they had to series link american idol on both Fri and Sat in order for skyhdi to record them both?

When I had a single series link for Fri, viewing the Sat episode in the guide didn't mention "Will be recorded" this caused the wife to miss last week's Sat screening.  So this week I had to add Sat as series link too.  

This recorded fine.  But went into Planner today (Sun) the Sat series link has gone and the Friday one remains, odd?!