I've noticed some oddness since switching over to AltEPG to do with reboots. On a few occasions now, TiVo has rebooted while a programme was being recorded as part of a Season Pass. After the reboots however TiVo hasn't automatically continued the recording as a separate entry in Now Playing as one would expect, but has just sat there on the same channel but not recording. If I manually restart the recording following the reboot using the record button, the new recording has overwritten the previous partial recording rather than leaving two separate partial recordings as expected.
Is this behaviour anything to do with the new guide data and lack of TMSIDs/OADs, perhaps? Or is some metadata about the programme length missing, so TiVo isn't figuring out that the whole programme wasn't successfully recorded?
The reboots have often happened while I've been using TiVoWeb or connected via telnet/FTP etc, so figure I've just been over-stressing TiVo at the time. I have noticed a few more random reboots than normal, but not sure if that's connected with AltEPG or if the hard drive is just getting on in years. FWIW I kept my existing TiVo setup during the AltEPG switchover and just followed the Clear Programme Data & To Do List followed by Guided Setup... Apart from these oddities, everything else seems to be working fine.
Edit: on further thought, it is almost as if the recordings are being treated more like Suggestions than Season Passes - as if TiVo realises it's missed the beginning of the prog so isn't going to bother recording a partial programme post-reboot unless manually told to.