Trivia: Chris McKenna appears in this episode in a supporting role. As a teenager, McKenna played Joey Buchanan on the soap opera One Life to Live; when he left the show, the character was aged a couple of years and Nathan Fillion was cast as his replacement.
Trivia: The voice of Oracle, the computer on the "Nebula 9" ship, is provided by Stana Katic.
Answer: The networks are now having winter breaks. A mid season end of new episodes, when they come back after the new year, it picks up as if several months have gone by. Beckett suggested Valentine's Day as a "chick flick" to watch as she is moved in. Also some episodes are not scheduled to air in order.