Looks like Family Ties will air 10 and 10:30PM starting Sunday the 30th:

Family Ties
Pilot
30 minutes- (CC), In Stereo

Elyse and Steven (Meredith Baxter Birney, Michael Gross) are shocked when Alex (Michael J. Fox) attends a dance at a restricted country club.

Sun Sep 30 10:00P NICKE- Nickelodeon

Family Ties
Elyse D'Arc
30 minutes- (CC), In Stereo

Steven feels shortchanged when Elyse becomes preoccupied with volunteer work.

Sun Sep 30 10:30P NICKE- Nickelodeon

After the marathon it will air Sun 10-11PM, Mon-Thurs 9PM (Repeats 2-3AM), Fri 10-11PM and Saturday at 10PM (Repeats 2-3AM)

This will change after though, after that week Cheers starts Oct 7-11 with a marathon, and a new schedule will start the 14th or so.