Which episode had bbc ranking and canle ranking of n/a?
CREATE TABLE table_26806 (
    "Episode no." real,
    "Airdate" text,
    "Viewers" text,
    "BBC Three weekly ranking" text,
    "Cable rank" text
)
SELECT COUNT("Episode no.") FROM table_26806 WHERE "BBC Three weekly ranking" = 'N/A' AND "Cable rank" = 'N/A'
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: Which episode had bbc ranking and canle ranking of n/a? ### Input: CREATE TABLE table_26806 (
    "Episode no." real,
    "Airdate" text,
    "Viewers" text,
    "BBC Three weekly ranking" text,
    "Cable rank" text
) ### Response: SELECT COUNT("Episode no.") FROM table_26806 WHERE "BBC Three weekly ranking" = 'N/A' AND "Cable rank" = 'N/A'