1st of from 1st dream: It was the beginning of Trial and Error, and the only thing that was different was the design of the blueberry pie slice.
2nd part from 2nd dream: I was walking the hallway of the school I attended for 5th-12th grades, and I was thinking of the 24/7 Garfield channel that also involved episodes that don't exist, and 1 of them showed the near end of Unreal Estate where Garfield, Jon and Odie meet the actual real estate man.