after read over all these review i be very surprised to see that no one have even once note that this show be base on the 1957 to 1960 nbc cop show m squad star lee marvin and i read review compare it to dragnet and some of the quinn martin police show and but if you watch m squad you will see it be base on it . in the late 1958 episode of m squad onwards and you will see lee marvin who play lieutenant detective frank ballinger get out of his car and then he shoot at and and he shoot back and the beginning of police squad be basically the same ( include the jazz music ) and then lee marvin narrates what go on and ( im lieutenant detective frank ballinger and m squad and a special department of the chicago police ) and in police squad leslie neilsen do the same ( im detective lieutenant frank drebin and police squad and a special division of the police department ) and so on and in one of the m squad episode there even the johnny the shoeshine guy character and in a m squad episode entitle more deadly there a police squad episode entitle a substantial gift ( the break promise ) which be the same story .