At the end of several episodes a message appeared on the screen that said: "The United States Air Force stopped investigating UFOs in 1969. After 22 years they found no evidence of extra-terrestrially visits and no threat to national security."
For a sequence that showed the Cylons attacking Earth, the producers used footage from Earthquake (1974) and superimposed Cylon fighters firing and causing the destruction in the sequence. Thus they managed to create a spectacular sequence on a tiny budget.
The series was originally to focus on Xavier traveling through time to disrupt Earth history with Troy and Dillon chasing him as they try to restore proper Earth history. While this concept was dropped, it was said to inspire Galactica 1980 producer Donald P Bellisario to create the TV Series _"Quantum Leap" (1989)_qv.
The turbocycles used in several episodes were modified 1979 Yamaha MX175 motorcycles. Only two were made. A dummy half turbocycle with fixed wings was under construction and to be suspended from a helicopter for a realistic take-off, but was incomplete when filming started. One of the operational motorcycles was cut in half instead.