Bobbie tells Steve that CBS was the first network to report on the Alien Invasion. CBS was the network which aired Wonder Woman at the time. This may also be a reference to the Orson Welles Radio Drama War Of The Worlds, which featured dramatized news reports of a fictional Alien Invasion and broadcast on CBS Radio.
Tim O'Connor plays the Army officer fighting the alien invasion. In "Judgment from Outer Space: Part 1" (when the show was on ABC), he played an alien who came to Earth and had to avoid conflict with the military.
Nuclear missiles have PAL locks on them to prevent unauthorized launch but in 1979 they were set to 000000.
The missiles are Hercules surface to air missiles.
The computer at the missile base is part of AN/FSQ-7 SAGE computer.