March 09, 1972 Season 0 24 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! June 10, 1989 Season 1 4 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! April 21, 1990 Season 2 16 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! June 15, 1991 Season 3 12 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! June 27, 1992 Season 4 12 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! October 02, 1993 Season 5 11 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! October 31, 1994 Season 6 13 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long! April 19, 1996 Season 7 13 Episodes How to watch? : Please click on the Season List, then select an episode. Wait for the video to load—usually, it doesn't take long!