sentences:  Retronauts was discontinued for a time following its 99th episode, but returned in 2011 as "Retronauts Live" (though it was still frequently referred to as just "Retronauts").The format was largely the same, except that the show was recorded as a live audio stream, and a portion of the show was dedicated to the hosts taking live call-in questions and comments from listeners.The show was hosted by Bob Mackey at the time of the 1UP Closure under the moniker "Retronauts Prime".