Did my Tivo change the channels in an SP?

My cableco recently changed some channels from HD to SD feeds. I discussed this in another thread.



This morning, I was checking my To Do list, and a program that I had specifically left on a SD channel has now changed to the HD feed of the channel.



I know that you can set an HD Only option in autorecords for wishlists, but I haven't see that setting for SPs.



Has anyone else seen their Tivo change channels in an SP, when you don't have the All Channels option selected?