The series was offered to the Sci-Fi Channel for U.S. broadcast in late 1998. The network picked up the series for 66 episodes before they had aired even one. First Wave premiered on the Sci-Fi Channel in March of 1999. Due to disappointing ratings, the series was cancelled after the three season contract ended in 2001.
The opening shot of the series finale ("Twice Bless'd") is nearly identical to the opening shot of the series pilot ("Subject 117"), showing a van driving up to the Wilsonville Psychiatric Institute.
Not only does this show feature many actors who were also on SG-1, including the lead, but the name of the alien threat, GUA, is very similar to Goa Uld from SG-1.