Originally, Paramount had conceived the series not as a sequel or for television, but a feature remake of The War of the Worlds (1953) with George A. Romero slated to direct.
In 1953 Earth experienced a War of the Worlds. Common bacteria destroyed the aliens but it didn't kill them. The aliens fell into a state of deep hibernation. Now the aliens have been resurrected more terrifying than before. In 1953 aliens started ...
In one episode, an actor dressed as an alien jumps down from an air duct onto a human. As he jumps, you can see his socks.
A mysterious credit that appears at the end of all episodes from Season One is for "The Far Side" cartoons by Gary Larson, courtesy of Chronicle Features. It's unclear why this credit appears since there is no evidence of the cartoon's use or even a reference throughout the show. It is because in an early episode, a Larson cartoon appears on a bulletin board in a shot and the credits were not changed after that episode.
The 2016 Australian Region 0 DVD release by SHOCK had good picture and sound clarity.