By my count,
Linda Bove was in 3 Sesame Street episodes this past season (episode numbers unknown).
- the episode where Zoe asks Rosita to teach her Spanish? Linda Bove gets splashed by Fuzzy, Oscar's pet elephant. This occurs in the middle of the episode.
- the epiosde where Bob and Linda teach sign language to various kids (one of whom is wheelchair-bound) and Big Bird. This is at the beginning.
- the episode mentioned above where Grover runs a popcorn stand.....
BTW....Jerry Nelson DOES make a cameo, but at the end, as an ice cream vendor. He appears right before the Letter of the Day segment, talking to Lulu, and at the very end before the ending credits, talking with Lulu again. He has one or two lines, but his voice and appearance are undoubtedly Jerry's.