Hi
From experience, your best best is to start a separate new thread in this forum (MCE Service & Data Quality Issues) for each series which isn't recording, and to keep prompting for response every few days.
I had once successful resolution doing it this way (Merlin), although it did take 2 weeks...
I find it hard to believe that MS are not trying to find a proper resolution, rather than (still) expecting users to raise issues on a case by case basis. Or why can't MS just get somebody to go through a printed publication of the week's scheduled programmes (from which those that ares series will be obvious), check the Media Center guide, and then chase the providers themselves. Be a bit proactive on this issue for once. Sometimes it seems that there aren't any MS employees who actually use Media Center.
JB