premise: Among these   Get Back  (a sign flashed on TV to invite or command the viewer to return after the commercial, or maybe promising that the production will return then);  Pants 50% Down  (ad for a sale);  in my side  (for my part; on my side of the argument);  Step the Pedal ' Water Will Flow  (sign in a train lavatory);  Drive-Thru Window  (at the bank);  How do you doing? 
hypothesis: Among these we did not get back.