A television receiver receives a programming signal including programming content and EPG data. The television receiver receives a request for an EPG display. The television receiver modifies the EPG data for one or more records in the EPG data which include content ratings that exceed a ratings lock setting of the television receiver. The television receiver may modify the EPG data for one or more records in a variety of different manners depending on a variety of different factors associated with the records. The television receiver then generates the EPG display from the modified EPG data and transmits the generated EPG display to a display device. The modification of the EPG data may prevent display of objectionable content in the EPG display and/or may indicate that the records correspond to blocked programs.