The season premiere aired on September 11, 2000 aired on how many networks?
CREATE TABLE table_15923 (
    "Season" text,
    "Network" text,
    "Season premiere" text,
    "Season finale" text,
    "TV season" text,
    "Ranking" text,
    "Viewers (in millions)" text
)
SELECT COUNT("Network") FROM table_15923 WHERE "Season premiere" = 'September 11, 2000'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: The season premiere aired on September 11, 2000 aired on how many networks? ### Input: CREATE TABLE table_15923 (
    "Season" text,
    "Network" text,
    "Season premiere" text,
    "Season finale" text,
    "TV season" text,
    "Ranking" text,
    "Viewers (in millions)" text
) ### Response: SELECT COUNT("Network") FROM table_15923 WHERE "Season premiere" = 'September 11, 2000'