In the small grocery store around the corner where I live the cashier’s are listening to music, having phone calls with their earplugs in or watching videos with their phones lying near the register. The work is boring and repetitive, customer interaction is quite minimal there anyway because they are really fast in ringing you up anyway. And that’s everything I care about anyway. They can enjoy their day a bit more and I can get to doing what I enjoy fast, too.
Both Futurama and Family Guy were cancelled early in their runs in 2002/2003 and only revived years later. Firefly was cancelled around the same time and just never revived.