chesterfield, a high of 32. so be careful if you're out there on the cold. back to you, morgan. >> all right, it was 50 years ago that the beatles made their first live u.s. tv debut on the ed sullivan show. the band broke broadcast records with 73 million viewers. back to the place where it all began. >> reporter: it is from this northern england port city from liverpool that the legend that would be the beatles began. the river that runs through the town is characterized by multiple harmonies and lots of guitars. fewer than half a million people live here, but more number 1 hits have come from liverpool than any other city in the world. 56 so far, according to the guinness book of records. billy kinsley used to play the tavern club, alongside of the beatles. he says that the merchant sailors and the nearby american military bases imported the sounds that influenced them all. >> it's a combination of all of the sounds we have, all the bands in britain, plus the association with all of these people going back and forth to america, bringing us these great rec