Unlike the previous two seasons, "The Lost Smurf," which was Season 8's premiere episode, was a single-part episode of standard running length. It would also become the last premiere episode that would introduce a new main character to the Smurfs cast, as Season 9 would shift the series' premise to time-traveling throughout the remainder of its run.
Grandpa Smurf "breaks the fourth wall" when he whispers to the viewers about the surprise box he lays at the door of the dungeon in order to escape.
The color-shifting skies as depicted in "The Lost Smurf" are similar to the "red skies" effect that was used in superhero comic book stories such as 1985's Crisis on Infinite Earths, where such skies would portend a coming danger.