In 1989, NBC changed the format of the show, removing some of the Smurfs from the forest and omitted the Smurf village and adopted a lost in time format similar to "The Time Tunnel", and then ultimately cancelled it due to decreasing ratings.
NBC changed the format of the show. This was in 1989. NBC was removing some of the Smurfs from the forest. This was in 1989. NBC omitted the Smurf village. This was in 1989. NBC adopted a lost in time format similar to "The Time Tunnel". This was in 1989. NBC ultimately cancelled it due to decreasing ratings. This was in 1989.