I switched to AltEPG during the week and since doing that, Tivo is convinced there is no guide data beyond 29 May. I can see AltEPG data up to 6th June but today Tivo had a big system message saying there is no more guide data available, please make a daily call.
Also, the ToDo listing hasn't got anything scheduled past 3rd June but there should be stuff scheduled on Sat 4th and Sun 5th.
When I do a view upcoming on my SPs, they stop at 3rd June but as I said, I have AltEPG data up to 6th June.