When Dr. Stubbs' probe is about to be launched, the shuttle bay door is opened. A few seconds later, we cut to an exterior view of the ship as it is pulled into the matter stream, and all three shuttle bay doors are closed.
When red alert is activated for the Borg-ship we see no red-alarm-signal underneath the view-screen (red light). Second time we look at it we do see it (just like it should be).
In "Peak Performance" Worf says that false sensor readings will also display the false ship on the viewscreen. But here, when the sensor glitch shows a Borg vessel, they don't see anything.
As the Enterprise twists so that it is facing away from the matter stream as it is drawn in, Picard orders "reverse engines". That would drive them closer into the stream, not further away.
Dr. Crusher: What were you doing when you were 17?
Picard: Probably getting into more trouble than Wesley.
Dr. Crusher: So was I! Isn't that what 17's supposed to be?
Worf is promoted off-screen, to full lieutenant.
Beginning with this episode, the crew wears a new kind of uniform that would remain throughout the series. Uniforms no longer have the colored piping on the shoulders and male uniforms are now two-piece, rather than one piece. While considered by most people to be an improvement, they did have the problem of the shirt riding up on the actors occasionally. This led to Patrick Stewart frequently pulling his shirt down on screen, a move that was unofficially named "the Picard Maneuver." The extras, however, continue to wear the old one-piece jumpsuit uniforms for another season.
With Dr. Crusher back, there is no explanation given as to where Dr. Pulaski (from the second season) has gone.
Geordi is promoted off-screen - this is the first time we see him as a lt. commander.
Gates McFadden returns as Dr. Crusher after being absent for the 1988-89 season.
A new sequence of cosmic visuals on the opening credits are used. These remain until the end of the series.