Tracy Swope's hair changes from flat to curly in the same scene several times.
When Hannibal is posing as a vendor at the magazine stand, the edition of Farm Journal Inc. that is behind him (with Carter and Reagan on the cover) is from Oct 1980, four years ago by the time of this episode.
Briefly, during the beginning title sequence the shadow of the filming helicopter can be seen in the lower right hand corner of the screen right after the word "Timber" disappears from the screen.