When Parker is infected with the alien virus, the team was trying to decide how to get out of him before he Backsteps but why not just use Donovan? Granted, Frank has been the only chrononaut to survive but still, wasn't it worth a shot to use Donovan rather then gamble on if Parker would take it back or not?
Ramsey: (to Parker, about Olga's new boyfriend) So he sticks his chicken in her deep fryer and you cry fowl.
There's a reference to the Gettysburg Virus from the episode of the same name.
Norman Lloyd is billed as Special Guest Star.