If you've been paying close attention to Shifting Gears, you might have noticed something going on in the background. This adjustment might have seemed subtle but is actually a deliberate and powerful choice — the set of Tim Allen’s sitcom is evolving with each episode. Matt Parker’s (Allen) house has been changing from being something kinda minimalist and bachelor to something with more stuff littered everywhere, reflecting the changes happening in the show’s central relationships. Now, thanks to production designer Stephan Olson, we finally know what the heck is going on.