CREATE TABLE table_21952 ("Country / Region" CLOB, "Name" CLOB, "Host ( s ) " CLOB, "Channel" CLOB, "Premiere / Aired" CLOB, "Seasons" CLOB)

Which channel has the host Art Rooijakkers?
SELECT "Channel" FROM table_21952 WHERE "Host(s)" = 'Art Rooijakkers'
SELECT "Channel" FROM "table_21952" WHERE "Host(s)" = 'Art Rooijakkers'