Sega is known for classic games like Zaxxon and After Burner. They made gaming hardware for about 15 years before throwing in the towel in 2001 and becoming a software-only company that still dabbles in the arcades, mostly in Japan. But before Sega found temporary success in video games, they were making something else: televisions.
Sega always had a reputation for being ahead of their time–so far ahead in fact that they usually dropped the ball, with someone else picking it up a half decade down the line with more success. They pioneered a Netflix-style service for games called The Sega Channel that ran off a standard cable system; they developed the modern open-world game with Shenmue later made successful by Grand Theft Auto III; they introduced out-of-the-box online gaming that was perfected by Xbox Live; and finally they were one of the first to build rear-projection TVs (RPTVs), which Mitsubishi, Toshiba, and a host of others spent over 25 years making quite profitably.
Sega-Vision (not to be confused with their later portable media player of the same name) was an RPTV that, as was customary in the 70s, came in a giant wooden cabinet that must have weighed a ton. Clocking in at a then-immense 50-inches, there is very little remaining about these TVs other than that they existed and were sold via mall outlets, and had some problems (perhaps the $2,395 price tag?) that kept them from being successful. As you can see from the Playboy article below, that was a lot back then. They quote $200 a square foot. According to inflation calculators, that would be about $9,211 today.