Oh gosh...I could be wrong of course, but I dont think there is anything sinister in George nonchalantly saying he was watching his fave show. He might have meant this like he usually watches these food network shows before he goes to work. Alot of people turn on a certain channel at a certain time and cant name every show. I just dont think he saw it as significant at the time. And LE didnt ask any follow up questions about it so they really didnt think it was significant at the time either. I think LE is fairly certain Casey and Caylee were at the house in the early afternoon of the 16th. It makes more sense that they stopped back at the house after Cindy went to work. That would explain the cell pings from the A house. Cindy was probably calling Casey to see where she spent the night before she left for work that morning.
After Casey left the house with little Caylee..she probably realized she cant stay there and her Mother cared more about what happened to Caylee than her, and thats when something happened.
totally jmo..