Christmas shoppers in Sears waiting for a turn at the “arcade,” via the Billings Gazette. That was a big TV in ’77. See more demo units here and here. Watch a Tele-Games (Atari 2600 clone) commercial from the same year here.
Demo units were extremely important to the early console industry. Many of us were introduced to various games and systems while dad was shopping for tools. The real arcade was usually not too far away, but it wasn’t portable, and it didn’t allow for endless play.
2 Warps to Neptune 
Though not as popular, Intellivision was the superior console. My friends family kept one in the kitchen for before school breakfast play. The Masters of the Universe game was incredible for its time.
Intellivision is my favorite console ever.
Sears was the number one retailer in the U.S. back then. These days it’s a ghost town.