Jason Segal, Jessica Williams, Christa Miller, Michael Urie, Ted McGinley, Luke Tennie and Lukita Maxwell chat with ET's Nischelle Turner on set of Apple TV's hit series 'Shrinking,' spilling details on what all fans can expect from season 3: From Michael J. Fox, Jeff Daniels and Candice Bergen joining the cast, to what's in store for Harrison Ford's character as his health deteriorates. Plus, a sweet engagement update from Segal, who reunites with his 'How I Met Your Mother' co-star Cobie Smulders on screen this season. New episodes start streaming on Jan. 28.