Discovery 22:00 Sat 15th June should be episode 3 of 'Naked and Marooned with Ed Stafford' but the TiVo guide is listing last week's episode 2. Therefore TiVo doesn't want to record it as it was recorded last week.
Sorry you're having issues with the guide. I've checked the online guide for this Saturday's programme as well as the office TV and they're not showing specific episode numbers. Can I ask how you've viewed this information?
I've attempted to put this Saturdays episode on series link and that also looks ok. If you really cant get the series link to pick this weeks episode, cancel the current link and create a new one based off this weeks episode and that also might help.