TiVo S3 & HD Failing to Record?

Starting in mid-September, TiVo owners are reporting on the TiVo Community Forums that their beloved TiVos are not recording shows on their season pass list. Symptoms include an empty To Do List and lack of recorded season passes and suggestions.

I have personally experienced this twice over the last month, and it's very frustrating to sit down to watch a favorite show only to discover that the TiVo has not recorded it. TiVo has acknowledged the issue and is currently looking into the problem.

TiVoJerry posted the following as a potential workaround:

If some, or all, of your Season Passes are not recording, the first thing you should do is check your recording options. If you have the SP set to record "First run only", and all upcoming episodes on that specific channel are reruns, the program will not record. If the SP is on a channel that only shows reruns, you'll need to set up a separate SP on the channel that shows the new episodes. Season Passes are channel-specific.

**HINT: while viewing a specific Upcoming Episode, hit the Info button to bring up program details that include the date the program was first aired. Just because a program lists the current year doesn't mean you caught it the first time around!
Also, if you set "Keep at Most" to a specific limit AND set the option to "Keep Until I Delete", the SP will not be able to record new programs. These two options should not be used together if you are unable to maintain that particular Season Pass. Change "KUID" to "Keep Until Space Needed" in this situation.

If you've already checked your options and are certain that the SP is set for the correct channel and that the program should definitely record, per the options you've set, please try the following steps:
1> Rearrange the priority of a Season Pass or two using the SP Manager, then check the To Do List. If you have a lot of SPs, upcoming recordings, wide WishLists, or a large hard drive with a lot of recordings on it, the "Please Wait" icon will be up for a long time as this work is being done.
2> If that doesn't work, try turning off Suggestions, restart the DVR, then reprioritize a Season Pass.
3> If what you are seeing somehow manages to continue despite the above steps, you should either change the recording options or recreate the Season Pass.

How are things going for other TiVo users? My TiVo HD is completely unaffected by this issue, but my S3 continues to be plagued.