Ultraman: Towards the Future is a tokusatsu SF/kaiju/superhero TV series produced in 1990 in Australia by the South Australian Film Corporation and Japan's Tsuburaya Productions (the creators of the Ultraman character). There were 13 episodes filmed (the first 6 episodes were the "Goudes Threat" story arc). Titled Ultraman Great (ウルトラマングレート or ウルトラマンG - Urutoraman Gurêto) for its Japanese release, the 13-episode show was originally featured on home video there later that year, and was later broadcast on Tokyo Broadcasting System from July 8 to September 30, 1995. This was the 10th Ultra Series and the first produced in the Heisei era.
Distributed in the United States by Sachs Family Entertainment, the show was broadcast Saturday mornings at 7:00 am on the Fox Network from January 4 to March 28, 1992.
Although simply called "Ultraman" in the original Australian version, he is called "Ultraman Great" in Japan to differentiate him from the established original Ultraman.
At the time, eco-awareness was at a high, and many episodes included environmental themes. Ultraman's three minute time limit is also attributed to Earth's "polluted atmosphere" in this series. This was deemed one of the earlier dark toned live action children shows (as they were place into Saturday and Sunday morning time slots). Series like Power Rangers would create mostly a comedic atmosphere for their stories with little or no drama, with the exception of VR Troopers and later Power Ranger series starting with Power Rangers in Space. (Wikipedia)