CREATE TABLE table_name_58 (affiliation VARCHAR, owned_since VARCHAR, channel___tv___rf__ VARCHAR)

What affiliation has an owned since larger than 1991, and also has a channel (tv/rf) of 42?
SELECT affiliation FROM table_name_58 WHERE owned_since > 1991 AND channel___tv___rf__ = "42"
SELECT "affiliation" FROM "table_name_58" WHERE "42" = "channel___tv___rf__" AND "owned_since" > 1991