Watch All That season 4 full episodes. Original/former cast members Katrina Johnson and Alisa Reyes both had left the show, and former new cast member Tricia Dickson was fired.

The show saw many changes before the start of the season. 21 episodes aired. All That's fourth season ran from November 15, 1997, to April 4, 1998. All That season 4 episode guide on TV.com. The complete guide by MSN. Watch all 21 All That episodes from season 4,view pictures, get episode information and more. Click here and start watching the full season in seconds. Nickelodeon's quintessential all-kid sketch comedy series from the 90s.