That was the Teleworld Paid Programming.If I Remember Correctly, TiVo does record special events and short videos of things that show up in your recordings. The recordings are from random channels, but are actually related to either TiVo material, or are actually promos and such, like a 5 minute recap of some series you have that's about to start a new season. When the recording's done, it should show up in your recording list as what it really is.
TiVo used to do it a lot - they'd actually rent time on a channel to air their program, just so that your TiVo could record it.
It's been a while, but I've caught it doing just that with my TiVos over the years.
Also, do you have your TiVo recording suggested programs? Mine gets a bit wonky every so often and starts recording stuff I'd never watch.
Tivo hasn’t used that (inefficient and expensive) method to get video clips on to our devices in years, because now they use broadband.
Those also didn’t show in your todo list. And they weren’t ever on C-Span, since they don’t air paid programming.
This is some other error happening.