1: You may have 25 recordings already, and the "keep at most" flag is triggering. Or the box is setting sufficient recordings for you to max at 25. Either existing recordings and/or changing the flag to "keep unlimited" (I'm doing this from memory, the wording may differ) should solve that.
2: Further episodes to the 17 scheduled are duplicates of 8 I assume you already have recorded. You can change the "Record" field to "everything" if you want to record *every* showing.
3: Further episodes are recording clashes, so either 3 (if you have TiVo) or 6 (if you have V6) other higher-priority recordings are already set.
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