Each episode's title card is accompanied with audio containing only Morse code (dots and dashes, or short and long beeps) which, when translated, provides a short hint (around 3 words) about the episode to come.
The web page which Hawkins accesses in episode 1.5 after the power is restored is the main page of MSN Turkey.
When CBS canceled Jericho in May 2007, fans began sending nuts to CBS in reference to the shows final episode, in which the main character referenced the Battle of the Bulge when he answered "NUTS" to a request to surrender. Three weeks later, over 8 million nuts had been shipped to CBS NY and CBS LA offices totaling over 40,000 pounds. Nina Tassler, president of CBS, sent out a memo on 6 June 2007 saying they have ordered seven more episodes to air within the year. They also asked the fans to stop sending nuts...
The Morse code that accompanies the opening credits of each episode is broadcast at 15 words per minute at 1000 Hz frequency.
Due to low ratings the series was canceled in Germany after episode #14 "Heart of Winter" by Pro7.
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.
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.
Although Esai Morales appeared in every season 2 episode, he was not billed as a series regular.
During the introduction, the Morse code spells out "Jericho Pilot".
The Morse code at the beginning of the episode spells out "JERICHO FALLOUT"
The Morse code at the beginning credits translates "JERICHO THREE"
The Morse code for this episode is "HE KNOWS ROB"
The Morse code at the beginning of the credits means "THERE IS A FIRE"
The Morse code at the beginning of the episode is "THE EMP HITS"
The Morse code for this episode means "PRAY FOR NYC"
In the scene where Johnston Green is cooling his thermometer in a glass of water, he says that he "doesn't want to be the reason this town runs out of antibiotics". Earlier in the series it is stated that he has the flu. Influenza is a virus, and thus he would not be given antibiotics as they would have no effect.
The Morse Code at the beginning means "ROB NOT FBI"
The Morse code for this episode is "AOV SURPRISE".
The Morse code at the beginning of the episode is "IT BEGINS WITH"
The Morse code for this episode translates to "6 AND ENDS WITH"
Vox Populi means "Voice of the People" in Latin.
The Morse code for this episode translates to "Bloodshed"
Morse Code during the opening title says: Bleeding KS [or Bleeding Kansas]
There's a map in Black Jack Fairground where you can see the six cities which claim to be the new capital of the United States after the destruction of Washington D.C. These cities are Sacramento (California), Cheyenne (Wyoming), San Antonio (Texas), Montgomery (Alabama), Syracuse (New York) and Columbus (Ohio). The fact that Columbus is one of the capital cities is important because it was the city where Robert had to deliver his bomb.
The Morse code at the beginning of the episode is "4 down 4 to go."
Morse Code during the opening title says: They will need it
Morse Code during the opening title says: A Costly Deal
At the hospital, a patient is mentioned by the name of Michael Ostrowski. Michael Ostrowski is listed in the credits as Supervising Producer and Writer.
Morse Code during the opening title says: Rob exposed
Morse Code during the opening title says: Who Ran Red Bell