1989 | 2 Episodes
Season 0 of Whose Line Is It Anyway? premiered on March 9, 1989.
1988 | 13 Episodes
Season 1 of Whose Line Is It Anyway? premiered on September 23, 1988.
1989 | 17 Episodes
Season 2 of Whose Line Is It Anyway? premiered on November 10, 1989.
1991 | 17 Episodes
Season 3 of Whose Line Is It Anyway? premiered on January 18, 1991.
1992 | 13 Episodes
Season 4 of Whose Line Is It Anyway? premiered on January 24, 1992.
1993 | 9 Episodes
Season 5 of Whose Line Is It Anyway? premiered on March 5, 1993.
1994 | 11 Episodes
Season 6 of Whose Line Is It Anyway? premiered on July 1, 1994.
1995 | 12 Episodes
Season 7 of Whose Line Is It Anyway? premiered on July 28, 1995.
1996 | 14 Episodes
Season 8 of Whose Line Is It Anyway? premiered on July 12, 1996.
1997 | 19 Episodes
Season 9 of Whose Line Is It Anyway? premiered on July 10, 1997.
1998 | 11 Episodes
Season 10 of Whose Line Is It Anyway? premiered on November 11, 1998.
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