Season 2 episode 8: Rent - A - Pop; Zack comes to the realization that there is only one way to reach out to his father Derek: mobile to mobile.

Season 2 episode 4: Driver’s Education; Zack tricks Screech into doing his Mr. Tuttle impersonation over the phone to stall Mr. Belding.

Season 1 episode 20: Screech’s Birthday; The girls call Mr. Belding pretending to be a student who has multiple personality disorder and is lost in the mall.

Season 1 episode 11: The Friendship Business; Zack uses his cell phone to make an important business call while being filmed for “Lifestyles of the Rich and Shameless”.

Season 1 episode 5: Screech’s Woman; Zack calls Screech under the guise of Bambi unaware that Mr. Belding is in the bathroom with him.