Hi ~ We did the same thing, but from MK/TTC/Epcot back to TTC just for a little break and to experience the monorail from MK to Epcot and back. We took the monorail from MK to TTC, changed to the Epcot monorail. The monorail went thru a forest and when arriving at Epcot went around Spaceship Earth, nice and slow. The monorail stopped outside the Epcot entrance for folks getting on and off. We stayed on and went back to the TTC where our car was parked. Here is a nice web site
http://198.65.141.39/ where you can see a video of the TTC to MK monorail (3 minutes 52 seconds) and there is an audio of Epcot to TTC monorail (7 minutes 12 seconds).
If you want to ride the monorail to TTC from Epcot, you will have to leave Epcot to board the monorail. It will take you to TTC, takes 7 - 8 minutes. S