According to DVD Talk, Debbie Allen is featured in a featurette on the Smurfs season one, volume two DVD.
Here is the information about the featurette:
I Smurf The Smurfs! (16:39) which is a look back at the era in which the series enjoyed it's fervent popularity, the early eighties. Here writer Marc Zicree, Director of the Museum of Comic And Cartoon Art Director Matthew C. Murray, actress and voice artist Jo Marie Payton, actress Cameron Candace Bure, director Debbie Allen, actress and musician Persia White, Smurfs writer Mel Gilden, voice artist Gary Owens, the voice of Smurfette herself Lucille Bliss, actress Catherine Hicks, the voice of Brainy Smurf Danny Goldman, and the voice of Jokey Smurf June Foray discuss the reasons that the series was so popular. Along with plenty of pertinent episode clips there are some neat behind the scenes and production art stills displayed here as well as an all too brief look at some of the merchandising that spun out of the series' insane success.