Complex sentence: Separate charts were presented for juke box popularity, record sales and radio airplay, similar to Billboards methodology prior to August 1958, when it debuted its Hot 100, which attempted to combine all measures of popularity into one all-encompassing chart.
Split into simpler sentences: Separate charts were presented for juke box popularity, record sales and radio airplay, similar to Billboards methodology prior to August 1958, when it debuted its "Hot 100". This attempted to combine all measures of popularity into one all-encompassing chart.