Don't think it was several days. Two Fat Ladies was probably in 12:30 - 1:00 pm
I remember my mother having time off work because of the attacks and she'd often watch Food Network and since I didn't have a TV other than for games at the time, I'd sometimes watch programs with her.
I remember watching Two Fat Ladies reruns with her that week because you just needed a mental break from all the news on the attacks, and it wasn't on the day of before the suspension because she hadn't gotten home until after it started.
I'm also fairly certain that's what ran in the 12 and 12:30 time slots as well. They ran those reruns a LOT back then in the early morning and mid day.
If I had to make a guess, I'd say it was about a 2 and a half day suspension at most. I vaguely remember that it may have come back at noon one day but I'm not totally sure on that.
I know it was 20 years ago and memory isn't totally reliable, but I was an older teen at the time, and it was traumatic so even mundane things from then are kind of burned into my memory. I hope maybe something in my recollection could at least give you some hint of where to maybe point yourself in the direction of your search.