Hi Jennifer,
The park calendars are normally available on the Walt Disney World website for the current month plus six month in advance and are currently available to view up until 31 October 2011.
I would expect the park calendars for November 2011 to be released around the beginning of May 2011 so you don't have too much longer to wait.
In order to check when Fantasmic is scheduled to be shown during your visit, you will need to access the park calendar for Disney's Hollywood Studios
HERE, click on the box next to 'View Month' and select November 2011. You will then need to click onto each individual day of your visit to see if and at what time Fantasmic is scheduled to take place during each day.
We are big fans of the
Fantasmic Dining Package. Anything which reduces the amount of time spent waiting in line at the parks has to be a good thing as far as I am concerned.
As to whether lunch or dinner is better at the Hollywood Brown Derby, I would take a look at the menus for each which you can find
HERE and then make a decision.
Wishing you a magical trip!