This channel was an online game service for Sega's Mega Drive video game system. It provided the console with content.  Customers paid to access games, get cheat codes and play demo games.
The Sega channel worked by streaming digitial content to users via cable television and a coaxil cable. It was first released in Japan in 1988  at a time when there was not a huge market for on-demand games. The TCI and Time Warner service was discontinued in 1998.