CREATE TABLE table_23730 ("Date" TEXT, "Presenter" TEXT, "Guest 1" TEXT, "Guest 2" TEXT, "Guest 3" TEXT, "Guest 4" TEXT)

Name the guest 4 for steve lamacq
SELECT "Guest 4" FROM table_23730 WHERE "Guest 2" = 'Steve Lamacq'
SELECT "Guest 4" FROM "table_23730" WHERE "Guest 2" = 'Steve Lamacq'