Was aired in Australia within a day of being aired in the US up until the mid-season break. After the break, Network Ten failed to return the show to air for around 2 months after the US. This delay, combined with lack of advertising and a poor time slot led to Jericho being "shelved" after Episode #1.13 "Black Jack". This is a fate shared by several other cult shows, such as Battlestar Galactica (2004).
The web page which Hawkins accesses in episode 1.5 after the power is restored is the main page of MSN Turkey.
The Morse code that accompanies the opening credits of each episode is broadcast at 15 words per minute at 1000 Hz frequency.
The countdown by Jimmy's daughter during the game of Hide and Seek, is a reference to the "Daisy" commercial from the lead up to the 1964 presidential election. The commercial was considered successful in implying that Barry Goldwater would start a nuclear war, and frightening some voters into voting for Lyndon Johnson.
When the series began 'Ashley Scott' received second billing and Lennie James was billed third. Beginning with the 16th episode, James received second billing, and Scott third.