Question: Who is the guest 3 in the show where guest 4 is Jill Douglas?
SQL: SELECT "Guest 3" FROM "1-20466963-4" WHERE "Guest 4" = 'Jill Douglas';

Question: Who is the guest 2 in the episode where guest 4 is Iyare Igiehon and guest 3 is John Oliver?
SQL: SELECT "Guest 2" FROM "1-20466963-4" WHERE "Guest 4" = 'Iyare Igiehon' AND "Guest 3" = 'John Oliver';

Question: Who is the guest 1 in the episode where guest 4 is Jill Douglas?
SQL: SELECT "Guest 1" FROM "1-20466963-4" WHERE "Guest 4" = 'Jill Douglas';

Question: How many dates are associated with a guest 4 being Jim Jeffries (debut)?
SQL: SELECT COUNT("Date") FROM "1-20466963-4" WHERE "Guest 4" = 'Jim Jeffries (debut)';

Question: What is the date of the episode in which the presenter is Johnny Vaughan?
SQL: SELECT "Date" FROM "1-20466963-4" WHERE "Presenter" = 'Johnny Vaughan';