Here's one I hadn't run into before. I have a single Season Pass for Wipeout on channel 707.
A Wipeout recording started at 8:00pm on channel 707 with generic episode title "Contestants tackle obstacles" and is slated to record until 10:00pm.
(Info shows episode 214)
Then at 9:00pm the other tuner kicks in on same channel 707 recording Wipeout with episode title "Zig Zag Buoy Run; Sack Launch" slated to record until 10:00pm.
(Info shows episode 205)
Checking grid guide it simply shows the 1st 2 hour "Contestants tackle obstacles" episode 214, so where does the 2nd episode 205 come from?? (It's not visible in grid or tivo guide and search by title only finds episode 214 - no sign of 205 anywhere I can see).
Only thing I can think of is perhaps there was a scheduling change and Tivo somehow did not adjust scheduling properly which seems like a pretty serious bug...