Though his NBC dramedy, First Years
, was just cancelled after only three airings, Facts of Life
alum Mackenzie Astin
already is bouncing back with a new gig. TV Guide Online has learned that Patty Duke
's scion will play the lead role in a new, as-yet-untitled comedy co-starring Tiffani Thiessen
. Produced by Steve Koren
), the show features Astin as a psychology grad student working on a thesis with comely coed Thiessen. Next week, Astin begins filming the pilot, which will be considered for inclusion on the Peacock net's Fall schedule.