Simplify the following text for a Grade 10 native English-speaking person.
Original: In 1952 , the brothers also started Checker Records as an alternative label for radio play ( radio stations would only play a limited number of records for any one imprint ) .
Simplified: In 1952 they started Checker Records for radio play because the stations only played a limited number of songs from one label and in December 1955 the started Argo Records for jazz music .